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Pcm ecu car won't start
Assuming the ECM is still working enough to report problems, getting any problem codes out of the system with a code reader is your best clue at this point - whether the Check Engine Light is illuminated or not. If...
What else can i do to diagnose the exact problem of my cars miss fire on the 3rd cylinder?
If electronics and fuel supply have been ruled out, the next possible cause is a mechanical issue. Have a compression test done across all 4 cylinders. If #3 is lower than the other three cylinders, it is possible there is...
Hello, thanks for writing in about your Ford F-150. I'm curious if you got the new PCM from the dealer. You should check if have the exact same part number on it. If the part numbers do not match and...
transmission control module failing. We just replaced the computer module (pcm) 4 days ago?
The P0700 trouble code is a code for transmission control module (TCM) failure. Without knowing the other codes, it will not be possible to give you an accurate answer; it all depends on the other codes: If you get...
After driving the car for 10-15 miles , if I stop the engine and try to start it will CRANK but wont start
Next time this happens, push the gas pedal all the way to the floor. This puts the car into what is called clear flood mode. This means the Powertrain Control Module (PCM) will not supply injector pulse to the injectors,...
I need to diabke anti theft I changed out steering colum ignition switch looked at all fuses
Anything can be bypassed, but it will take more time and money to bypass the security system than it will to replace it. This is a common request from many customers and I can say that the manufacturers do a...
What other issues could I check, if I changed my coolant temperature sensor and my vehicle is still jumping or missing?
You need to fix that air leak. The best thing to do is buy a new intake boot. If you're short on funds, you can use duct tape or some other strong tape to cover the hole in lieu of...
P0755 & P0700 error codes
The problem with buying used tires and not having them balanced is the potential problems they can cause. Most transmissions - or more specifically, the Powertrain Control Module (PCM) which controls the transmission and drive line - contain incredibly...
Van stalled, after repairs it cannot start
Hello. Your issue may be due to a faulty coil pack, clogged catalytic converter, or a faulty mass air flow sensor. Each of those components can cause the stalling condition if they develop faults. The car should be checked to...
How could I fix my strategy code FBJR2G3 on my 2005 mustang GT.
There should be a 1-800 number to call the SCT tuner people with questions. Not all tuners will work with every model of engine and computer strategy. The Engine Control Unit (ECU) program from the factory is saved in...
Where could I find a TSB for my 2005 mustang GT regarding my Throttle body or Throttle Position Sensor?
I went through all the technical bulletins and recalls and did not find anything for reprogramming your computer or repairs to the TPS or throttle body. The ones that you are not finding may not be the right ones. I...
I need help with diagnostic trouble codes that suddenly appeared making vehicle almost undriveable.
Firstly, you should have the battery disconnected and the PCM disconnected. Check their connectors for any problems and apply dielectric lube to the connectors so the connection is clean from corrosion. If the problem continues then replace the PCM. All...
No Crank No Start, dashboard lightup with No Bus warning
Considering the problems at hand it may be best for an in person diagnosis of the situation. The problem could be as simple as a failed sensor or broken wire, or the power-train control module itself going faulty. Considering the...
pcm problem maybe
Hello. The first thing I would check to see is if perhaps the replacement wire is causing an issue. If the wire is old or worn it may not be hindering the spark, and causing the vehicle to experience drivability...
overheating no cooling fans
The relays are turned on by the Powertrain Control Module (PCM) by grounding the control wire of the relays. The PCM needs input from the engine coolant sensor above the water pump to sense whether the engine is overheating before...
Getting 2 then 4 abs codes, brake shutters, speedo dies and engine slowes when Brake and absolutely lights come on,
You definitely want to start by inspecting the front and rear wheel speed sensors; a failure in these circuits will result in several other problems. Begin by connecting a scanner to see if the Powertrain Control Module (PCM) is registering...
I would question why the computer needs to be replaced. If the computer is causing a problem like the vehicle will not start or some other issue, then I would recommend the dealer to diagnose it since it will need...
Fuel trim bank 1
If your vehicle is having issues with the fuel trims, this is usually an issue with the powertrain control module or engine computer. The powertrain control module is responsible for setting and adjusting the fuel trims as the vehicle is...
Temperature gauge erratic/ rpm erratic
Most likely this is a problem with the instrument cluster. Even so, I would make sure your vehicle isn't actually overheating. The best method for doing this is with the use of a infrared temperature gun. They aren't cheap, but...
Can i buy a used pcm and have the dealership reflash it to my car?
Hello, thanks for writing in about your Dodge Challenger. From what you've described, this is a question you'll have to ask the dealer. Most PCM's I know of do not let you reprogram them to a different vehicle VIN number...

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