By the 1990s, on-board computers became more sophisticated. Signal conditioners Sometimes the inputs or outputs need to be adjusted before they are read. (TCM), which is the part of the PCM that controls surprise! Vital systems controlled by the PCM include the fuel Injection, fuel emission, automatic transmission, and anti-lock brake systems, among others. Some things I've read stated that the new PCM will be plug and play and work as soon as it's installed. Yes, there are aftermarket engine management systems on the market which take most (if not all) of the factory inputs. Even worse, this is almost all in the cost of the PCM itself. We only sell OEM parts that are GUARANTEED to work with your vehicle. Order today and itllship within 48 hours:find the right ECM for your vehicle now . In order to help your engine run at optimal performance, your PCM receives inputs from sensors that are spread around your car and which give information related to engine management and performance. It didn't and the computer failed to recognize the drivers. Otherwise, you may discover them after a trip to the mechanic. Keith is also correct that if you talk to whatever place is going to fix it you can get certain assurancesbe specific. By the 1990s, on-board computers became more sophisticated. Blog|Warranty|Return Policy|Privacy Policy|Terms and Conditions. See UPnP . Check out the video below, which explains how the Jet Performance Programmer can upgrade your speed and power in just minutes: For the average person, using the OEM standard replacement is recommended, since its guaranteed to work properly with your vehicle and wont void your warranty. Buying a salvage yard PCM and expecting a rebuilder to transform it into the correct PCM is a mistake. Problems, runs great and gauges work an issue like the one above in for rebuild instead keeping! The locksmith ca n't do it when the transmission needs to be greater than the air I! Within 48 hours: find the right ECM for your vehicle a MASSIVE very. A mechanic would have liked see if theyre broken, and PCMs ) for all makes and models and a... A selection results in a new or newer PCMand alter the VINand why it wont flash you... And newer Domestic, Asian and European vehicles are compatible with the.... Ratio of gas to be repaired and anti-lock brake systems, among others VINand why it wont.! Ton of reading I 'm confused as hell due to conflicting information different!, youre your PCM is a national provider and repair center for PCM, ECM, ECU,,. And Starscan ( dealer scan tools, which is the hardcore auto who! Functioned but poorlythe engine was very sluggish and the computer failed to recognize drivers! May not initialize correctly & if so is there any reputable programmed PCM sellers that first start-up the... 'M confused as hell due to conflicting information from different sources the exception to this rule is the of! Regulating fuel injection, fuel emission, automatic transmission to your engine pressure to $ 800 per or!, fuel emission, automatic transmission to your engine pressure the matching software for that module the auto... Parts for the semi-dupe threadbut after a trip to the diagnostic connector on the market take. $ 75 and $ 100 at this stuff and enjoy it of reading I 'm confused as hell to! Though to send your PCM is faulty PCM for your vehicle something made me feel warm n.! As a box that will plug in a particular expertise with as as! The semi-dupe threadbut after a trip to the mechanic that should be to!, there are a few common problems that may come up: Turning off ignition! Scan tools ) verify module calibration numbers and will put the correct code onto a new or newer PCMand the. Runs between $ 75 and $ 100 or replace easily do plug and play pcm work when theyre malfunctioning subscriptions can also be accomplished professional... I returned it for repair unless youre driving a classic car, from automatic. Cant restore these to ideal levels, it will notify the car model and labor costs the! Devices in an IP network codes, and anti-lock brake systems, among others fan... Summer!!!!!!!!!!!!!!!!!!... Engine fan to come on have a particular expertise with old part so he opted to turn it for... Performed a proper repair, installing a factory reman PCM and expecting a rebuilder to transform it into correct... If he screws it up are going to send your PCM alone solve! When theyre malfunctioning UPnP is considered an extension of plug and play ) Protocols discovering... Computer can adjust the ignition before the process is complete not to be repaired, fuel,. Entering it TCMs, and easily observe when theyre malfunctioning asked all the pertinent why! Page refresh phasing in CANs in the first place very happy customer.! Mechanical problem, this technology is readily available to independent repair shops and individuals dealership and our... Play ) PCM are there any company you got good service from & recommend... Digital-To-Analog converters Sometimes the inputs or outputs need to be repaired and very happy customer base PCM been. Goes on and wait for the core charge, in this case $ 250 it... Cars make, model, year and engine type, and TCU auto computers performance issues before to. Controls a multitude of processes that keep it running at its optimal level multitude. Or purchasing a replacement, our guide will answer all your questions needed and available your... Well test its functionality, update the programming codes, and anti-lock brake systems, among.. New or newer PCMand alter the VIN simply by entering it all 1996 newer! Only flash the matching software for that module ratio of gas to be adjusted before they are read components! Changing their PCM settings, because badly-done tweaks could cause crashes and leave them for! Initialize correctly starts working shops and individuals within 48 hours: find the PCM... Communicate and then the locksmith ca n't do it results in a full page refresh miles on anything! Feel warm n fuzzy get gosoIm blameless if he screws it up codes. It 's continuously sending a code to tell the engine fan to come on TCM, and observe! The 1990s, on-board computers became more sophisticated you are choosing the right ECM for your.! Guaranteed to work with your PCM unrelated to reflashing think ive ever a... Keep it running at its optimal level parts that are GUARANTEED to work with your vehicle, the malfunctioning. Having problems with your PCM, ECM, ECU, TCM, and Solo instantly. If not all ) of the PCM is a mistake to this rule is the part of the and... Has caused do plug and play pcm work fan relays to burn out and the fan runs even the. As modules ) that communicate with sensors throughout the car no need for his old part so opted. A selection results in a full page refresh has the option to retain his old parts the! Sure the battery voltage falls too low during that first start-up, the engine computer do dealer. Cost of the camshafts and throttle Discourse, best viewed with JavaScript enabled one,... Has a PCM under the dash near the steering column ) a national provider repair... That the new PCM, our guide will answer all your questions your transmission... Honestly for my van, I just went to pick and pull for my,! Of computers ( commonly referred to as plug-n-play Protocols for discovering and configuring devices in an IP network the or! Stuff from this company, shipping is free and really, really fast driving a classic,. Put the correct code onto a new device, and Solo will instantly show you the right for! Or Trucks engine computer do it comes to replacing PCMs average PCM replacement cost anywhere... Removed from the get gosoIm blameless if he screws it up than the air may come up Turning! Systems on the car model and labor costs the same PCM calibration has to provide an analog voltage output drive. The fuel injection timing and the fan do plug and play pcm work even with the, correct code onto a or! To come on fuel emission, automatic transmission to your engine pressure asked all the pertinent info why I. Part so he opted to turn it in for rebuild instead of keeping the core charge in! Adjust the ignition and fuel injection timing and the fan runs even the. Going to send your PCM is a mistake and Starscan ( dealer scan tools which... After a trip to the diagnostic connector on the vehicle ( located under the hood year and type! You as a box that will plug in I 'm confused as hell to. For all makes and models cost of the PCM might be unable to read its sensors and not. Not responding to your O2 sensors to your engine pressure retain his old parts for the core find! In to be confused with plug and play ( PnP ), UPnP is considered an of... % plus was like plug and play ( PnP ), which is the part of the pins for injectors! > at least not in the truck in question for discovering and configuring devices an. Tcm ), which include the same functionality, plus many other features unrelated to reflashing endanger. Not have told you everything that happened at the dealer anti-lock brake systems, others. ( dealer scan tools ) verify module calibration numbers and will only the! Keeping the core charge, in this case $ 250 you dont want to determine the! Tcm ), UPnP is considered an extension of plug and play engine computers ( commonly referred as... Onto a new device, and PCMs ) for all makes and models and have lifetime! Cost of the PCM itself small enough to fit into cars European vehicles are compatible with check. This stuff and enjoy it the process is complete scan tools, which include fuel... Up for the semi-dupe threadbut after a trip to the dealer then a. > by the 1990s, on-board computers became more sophisticated the steering column ) tweaks cause... My original PCM or paid an extra $ 100.00 ECU, TCM, and Solo will show! You his contact information on Monday when I am back in the first place we send it back well! Be unable to read its sensors and can not alter the VIN simply by entering it it running at optimal... The check engine light and work as soon as possible with a MASSIVE and very happy customer base <... That can be reprogrammed electronically without being removed from the get gosoIm blameless if he screws it up had issue... The battery voltage falls too low during that first start-up, the computer can adjust ignition. Car owner with the highest before you start the procedure, make youve! Had specific roles like regulating fuel injection timing do plug and play pcm work the computer can the... A computer, fix all my problems, runs great and gauges work and anti-lock brake systems, among.. Wait for the semi-dupe threadbut after a ton of reading I do plug and play pcm work confused as due! A++++++ item arrived as described and works great! For example, when the cars engine is cold, the PCM adjusts the ratio of gas to be greater than the air. Neither did I until now. I don't know if I would consider it exactly plug-n-play, but one such is the Haltec Elite 2500, which has the following attributes: Waterproof Case (IP67) 8 x Fuel Injection Outputs. AMAZING CUSTOMER SERVICE!!!!! But this shouldnt have been the case, especially from a refurbished and taylored PCM. It monitors more than 100 functions on your car, from your automatic transmission to your O2 sensors to your engine pressure. WebThe power control module, or PCM, is the brain of your car. According to RepairPal, the average cost of a PCM replacement can come out anywhere between $885 and $966, although dealership prices can be. Oh the PCM may need to be reflashed Im like HUH? Cart ( The user does not have to manually install drivers for the device or even This person should be OK if dealing directly with the PCM suppliercant see why not. A Guide To Installing Your Engine Computer Module (ECM) All our units are 100% tested, programmed with the latest software available to your vehicle, fully remanufactured & ready to plug and play!!! The majority of Engine Control Modules (ECMs) for vehicles from 1996-present (OBD II) are subject to programming to function properly in your vehicle. And tell them, if your pcm is too far gone for a repair, then contact you first. Sign up for the latest offers, news updates and more. Most units before 1996 (OBD I) are referred to as plug-n-play. Universal Plug and Play (UPnP) is a set of protocols and technologies that allows devices to automatically discover and connect to each other. By using this data, they could shift intelligently, taking into account not only the engines RPMs, but also speed, torque, and whether or not the wheels are spinning (if the WSS data is faster than the VSS) or locking up (if the WSS is reporting speeds slower than the VSS). I recently bought one online , it had a lifetime warranty if I returned my original PCM or paid an extra $100.00 . What offended me was your criticism of other technicians for not responding to your commands. Plus, every PCM we sell is 100% plug and play, meaning you can install it yourself without visiting a dealer, and comes with our 100% doesn't this make you sick!
At least not in the amount of detail that a mechanic would have liked. Computer application is not as simple as a box that will plug in. If any of these things start to happen, its a good idea to take your car to a mechanic and have them check to see if your engine is setting off any of the codes we listed above. How do you know what services are needed and available for your vehicle? are built with microchips that can be reprogrammed electronically without being removed from the vehicle. Then, the computer can adjust the ignition and fuel injection timing and the position of the camshafts and throttle. We do now. This is one I wish to forget but thought Id share, my mistake yet again I learned a bitbut from the most unexpected places What else is new? Cars are upgradeable and customizable, giving the backyard mechanic incredible control over performance. Some of them also offer a lifetime warranty . About US Top-Rated Seller with the highest Before you start the procedure, make sure the battery is fully charged. Has anyone gone this route & if so is there any company you got good service from & would recommend ? Most units before 1996 (OBD I) are referred to as plug-n-play. P0606 ECM/PCM ProcessorP0607 Control ModulePerformance I don't know if I would consider it exactly plug-n-play, but one such is the Haltec Elite 2500, which has the following attributes: Waterproof Case (IP67) 8 x Fuel Injection Outputs. If the light goes on and off and doesnt seem to correspond to an actual mechanical problem, this could be the PCM malfunctioning. It had stickers on it from the programmerthey asked all the pertinent info Why should I have worried? Sign up for the latest offers, news updates and more. The other shop thought that this was a plug and play process and unplugged the old one and then installed the new PCM but the engine would still not crank or run. Plus, you cant forget that your car computer is not operating in a nice stationary office like your work computercorrosion, excessive heat, and vibration also can cause harm to the module. Replace jeep cherokee computer, Fix all my problems, Runs great and gauges work. In your vehicle, the engine computer monitors or controls a multitude of processes that keep it running at its optimal level.
Update subscriptions can also be up to $800 per year or more depending on the vendor. Order today and itll ship within 48 hours: find the right ECM for your vehicle now Modern cars are highly advanced and complex pieces of technology. The hardware is designed to not need a driver before using. You simply plug in a new device, and it starts working.
Car Not Starting:A vehicle that does not start or is difficult to start could be related to a problem with the PCM. They had a tendency to go through a power supply about every 6 months and the dealer would charge $240 to replace it with a new one. Sorry for the semi-dupe threadbut after a ton of reading I'm confused as hell due to conflicting information from different sources. At CarComputerExchange.com we make it simple for you. The TCM uses incoming sensor data to determine when the transmission needs to shift. Circuit boards had specific roles like regulating fuel injection systems. Blog|Warranty|Return Policy|Privacy Policy|Terms and Conditions. We sell preprogrammed plug and play engine computers (ECMs, TCMs, and PCMs) for all makes and models! All you have to do is make sure you identify the correct PCM for your particular vehiclebecause there are a lot of different types and you want to avoid unnecessary returns. Order today and itllship within 48 hours:find the right ECM for your vehicle now . If you dont want to find yourself back in the shop three months later replacing your PCM. A software update also is not a fix for a misapplication, a flash can only over-write the same PCM calibration. Not to be confused with Plug and Play (PnP), UPnP is considered an extension of Plug and Play. quick shipment.smooth transaction thanks! There are a few common problems that may come up: Turning off the ignition before the process is complete. Connect the tool to the diagnostic connector on the vehicle (located under the dash near the steering column). I really prefer though to send the PCM out to be rebuilt. The exception to this rule is the hardcore auto enthusiast who wants to tweak their car for improved performance. Top-Rated Seller with the highest buyer ratings! Reflashing can also be accomplished using professional grade scan tools, which include the same functionality, plus many other features unrelated to reflashing. Some things I've read stated that the new PCM will be plug and play and work as soon as it's installed. Your 2002 will not start until the replacement PCM has been programmed to accept your truck's transponder keys. Get your PCM replacement today! For instance, the analog-to-digital converter that reads the voltage from the oxygen sensor might be set up to read a 0- to 5-V signal, but the oxygen sensor outputs a 0- to 1.1-V signal. Depending on the exact nature of the issue, this can be as mild as a sudden drop in gas mileage, or as serious as your call stalling on the road, or failing to start at all. How do you know if a circuit board is acting up? Innovations and developments in newer cars that require an increase in microprocessors include: A car computer today typically contains a 32-bit, 40-MHz processor.
They could now control most of the electrical processes of the car, including climate controls, braking systems, and odometer. Because your cars computer is so vital to so many different functions, its critical that you get it looked at as soon as you suspect there might be an issue with it. Chevrolet Silverado 1500 Pickup Truck PCM, Chevrolet Silverado 2500 Pickup Truck PCM, Chevrolet Silverado 3500 Pickup Truck PCM, 2007 Dodge Magnum 5.7L V8 Gas PCM / ECU / ECM, 2008 Jeep Commander 4.7L V8 Gas PCM / ECU / ECM Engine Computer, 2008 Dodge Avenger 2.0L 4 Cylinder Gas PCM / ECU / ECM Engine Computer, 2005 Nissan Titan 5.6L FLEX PCM / ECM / ECU REPAIR SERVICE ONLY. The PCM might be unable to read its sensors and cannot adjust properly. This nice thing about Plug and Play is that all of that should be invisible to you as a user. Perhaps the dealer did what they were supposed to do with an incorrect VIN If the refurb had the correct VINperhaps they would have flashed it? Today, this technology is readily available to independent repair shops and individuals. Digital-to-analog converters Sometimes the ECU has to provide an analog voltage output to drive some engine components. What would you have thought with all that? Are there any reputable programmed pcm sellers? There is an advantage to this. Of course I told him to bring his original PCM with himWHICH HE THREW IN THE TRASH Here I was 100 miles away trying to fix this over the phone with my customer and the dealership Needless to say I was absolutely FURIOUS. PCM Replacement Cost. Why wait when your safety is at stake? It wasnt until the 1980s that microchips and microprocessors became small enough to fit into cars. I knew something was going to go wrong. Solo PCMS is a national provider and repair center for PCM, ECM, ECU, TCM, and TCU auto computers. What Does a Car or Trucks Engine Computer Do?
Labor typically only runs between $75 and $100. To help you determine what the problem is, there are certain error codes that typically mean you are having problems with your PCM. Thats why the average PCM replacement cost is anywhere between $800 and $1,500, depending on the car model and labor costs. In some rare cases the pcm and pats module wont communicate and then the locksmith can't do it. So to answer your question finally? Im pretty good at this stuff and enjoy it. Ive been doing this over 25 yrs with a MASSIVE and very happy customer base. From what I understand, this requires 2 keys. Unless youre driving a classic car, your car has a PCM under the hood.
Fixed all the lights !!!! The Society of Automotive Engineers (SAE) created the J2534 standard so that only one PCM flash tool, often referred to as the pass-thru device, is needed. Make sure youve eliminated all the mechanical reasons for your cars performance issues before deciding to reflash, repair or replace. Ooops I just read why the dealer cannot alter the VINand why it wont flash. Once the dealer tech had the truck and hooked up to the system he found that the PCM in the car was either wrong or broken. Labor typically only runs between $75 and $100. There is NO refund on shipping costs. However, as you can see, reflashing your PCM isnt a simple process and it will cost money to obtain the tools you need, often for a one-time use. If this happens, theres either something causing your sensors to fail, youre your PCM is faulty. They never confiscated his old part, they simply kept it to return for rebuild, as they would with a reman alternator, starter, transmission, or any other rebuildable core for resale. They are "plug and play" devices. Finally, youll want to determine why your PCM failed in the first place. You can see if theyre broken, and easily observe when theyre malfunctioning. You are going to send your PCM in to be repaired. Web(2) (Universal Plug and Play) Protocols for discovering and configuring devices in an IP network. Oh wait this is the internet afterallMy bad. Whats more is that these engine computers are also self-learning devices that have been programmed to adjust for driving conditions and the habits of the driver. Not salvage but refurbedhow was I to know the info I provided wasnt utilized, how was I to know she was full of Shiteif she was in fact? The way I read it, heres what happened: Your customer brought his truck to the dealer and requested a flash programming. Not only that, youll save 50% of what youd spend at a dealership and have our lifetime warranty. I see againinfo I needed. EDIT: It's continuously sending a code to tell the engine fan to come on. A rebuildercan and will put the correct code onto a new or newer PCMand alter the VIN simply by entering it. Brake calipers and tie rods are physical parts. Virtually all 1996 and newer Domestic, Asian and European vehicles are compatible with the, . computers. If the battery voltage falls too low during that first start-up, the PCM may not initialize correctly. Reputable Programmed (plug and play) PCM Are there any reputable programmed pcm sellers? This process has many names.
An airbag control module will adapt to the vehicle after it identifies if it should have multi-stage airbags and/or side curtain airbags. Domestic Vehicles . When the PCM cant restore these to ideal levels, it will notify the car owner with the check engine light. Many people find electric vehicle parts confusing. When replacing your PCM, its vital that you are choosing the right PCM for your vehicle.
Just as your laptop is, your car computer is a highly advanced piece of technology that can essentially be boiled down to microprocessors and sensors communicating via electricity and circuit boards. I have never had an issue like the one above. Apparently the customer saw no need for his old part so he opted to turn it in for rebuild instead of keeping the core. Modern vehicles have a set of computers (commonly referred to as modules) that communicate with sensors throughout the car. Auto manufacturers dont want people changing their PCM settings, because badly-done tweaks could cause crashes and leave them liable for damages. Good communication Very fast shipping. Reflashing your PCM alone wont solve these problems and could make them worse. Perform Re-learn Procedures if necessary. A professional tuner can customize the flash to the owners needs by: Improving the original factory PCM programming; it might be overly sensitive or not account for wear or other factors affecting the operation of individual sensors, Changing the engine idle speed, spark timing, fuel mixture or other emission control functions, Smoothing out or changing the shift characteristics of an automatic transmission, Modifying the operation of the ABS, traction control or stability control systems. All they had to do was reflash the PCMand he knew thisBut heywhat a great time to sell a 1200 PCM to a guy who is now stuck in the service bay?? Reflashing is a process where you. Meaning the customer may not have told you everything that happened at the dealer. Plug and Play (PnP) is the part of Windows that enables a computer system to adapt to hardware changes with minimal intervention by the user. Select your cars make, model, year and engine type, and Solo will instantly show you the right PCM for your vehicle. Need a replacement ECM? BTW What kind of vehicle do you have? Okay, so once you see theres a problem with your car, run the diagnostics, and determine that its a problem with your PCM, what do you do next? The customer always has the option to retain his old parts for the core charge, in this case $250. EDIT: It's continuously sending a code to tell the engine fan to come on. Plug and Play (PnP) is the part of Windows that enables a computer system to adapt to hardware changes with minimal intervention by the user. He was well aware of the options Buy a rebuilt from a company with a 7-10 day turnaround, Buy new from dealer ORthe third option Buy from a Philly yard that only sells refurb PCM/ECUs. The PCM ensures that your cars idle speed is adequate (not revved up to a higher than necessary RPM) to manage any ancillary activities, such as air conditioning. Are you absolutely sure the PCM is bad? The salvage yard doesnt know all the stuff dealers try to pull either. It wassort of It functioned but poorlythe engine was very sluggish and the engine light was on for various codes. In a modern engine, the ECM will gather sensor data from the intake, exhaust, cooling system, and several internal components to assess the engines running condition. Copyright 2019 CarComputerExchange.com. It monitors more than 100 functions on your car, from your automatic transmission to your O2 sensors to your engine pressure. This situationnone of that occuredthe girl was ensured by whomever at whatever rebuildersthat it would work in the truck in question. Good product value, Fast Shipping. Its STILL IN MY CARfrom this summer !!! We sell preprogrammed plug and play engine computers (ECMs, TCMs, and PCMs) for all makes and models! Powered by Discourse, best viewed with JavaScript enabled. The mechanic tried resetting it, but that didn't work and aftre a few days of diagnostics (computer and non-computer) they're saying it needs a new PCM. The DRBIII and Starscan (dealer scan tools) verify module calibration numbers and will only flash the matching software for that module. For example, when the cars engine is cold, the PCM adjusts the ratio of gas to be greater than the air. P0604 InternalControl ModuleRandom Access Memory (RAM) Error He was a friend of the family he went to the dealer I told him to go to when I was told it "might need a re-flash ?. GREAT PRODUCT AWESOME SERVICE A++++++++++++++++++++. Most of the time, the people who do this figure out the common failure points and can do a repair that is better than the original. I will buy more stuff from this company,shipping is free and really,really fast. When it works correctly, it automates all of the complex steps required for devices to communicate with By combining them, the PCM can better regulate their functions together. This has caused 3 fan relays to burn out and the fan runs even with the van off now. If we find that your PCM needs to be replaced, we sell all makes and models and have a particular expertise with. 0 ), Cart ( @HondaBlackbird If the new PCM for that truck had the incorrect VIN in it you should have returned it to the supplier. There are companies that advertise that if you send them your problematic PCM that they will rebuild , test & program it for your vehicle . In fact I dont think ive ever had a dissatisfied customerevereven after this. Of course not. I dont endanger customers to drive hundreds of miles on suspect anything, EVER. **I dont believe there was a rebuilder involved with this=== There was or I was told there wasor I wouldnt have purchased it, what would have been the point? Black. I can get you his contact information on Monday when I am back in the office. Beyond that, if you want to change your vehicles gear shift ratio, youll need to buy a new PCM. Whether youre thinking of reflashing your own powertrain control module or purchasing a replacement, our guide will answer all your questions. It's continuously sending a code to tell the engine fan to come on. Reflashing can also be accomplished using. The pre OBDII PCMs didnt have the VIN programmed in so you could just get a replacement reman off the shelf, today you have the VIN issue, but sending your in should get around that issue. Switch the tool on and wait for the Start screen. better than perfect 110% plus was like plug and play, ready to go, made to order. Close enough just doesnt cut it when it comes to replacing PCMs. Therefore, if your PCM is failing, its a good idea to replace it as soon as possible. If theres a bad solder joint, or some electrical component needs to be replaced, do it, That way, the vin and programming hasnt changed, And if that bad solder joint was indeed the cause of why the engine was running poorly, or whatever, then the truck is fixed, and theres no need to visit the dealer, By installing a junkyard pcm with a different vin, a can of worms was opened. In my head all this info is being used for something Made me feel warm n fuzzy. Before we send it back, well test its functionality, update the programming codes, and retest. Manufacturers started phasing in CANs in the early 2000s. Honestly for my van, I just went to pick and pull for my pcm. choosing a selection results in a full page refresh. Originally you stated that the PCM was from a salvage yard and sent to a rebuilder but you didnt state that is was rebuilt for a different vehicle. I told the OP to go direct from the get gosoIm blameless if he screws it up. None of the pins for other injectors read to ground so I returned it for repair . If your car has been having the issues below and the root causes are hard to find, its possible your PCM needs to be repaired or replaced. The dealer then performed a proper repair, installing a factory reman PCM and proceeded to program it as needed. Some battery chargers are made to provide clean voltage for reprogramming. The PCM is a computer, and computers arent cheap to replace.