Why is my PCM bad?
PCMs typically fail for one of two reasons: voltage overloads (often due to a short in a solenoid or actuator circuit) or environmental factors (corrosion, thermal stress or vibration). If the shorted solenoid or actuator isn’t found and repaired, the voltage overload it creates may damage the replacement PCM, too.
Why does a bad PCM cause a problem?
Problems in the computer can lead to serious problems with almost every aspect of your car or truck because the computer has to work properly in order for everything else to follow suit. The PCM is what ultimately controls and regulates your fuel system. Different sensors in the engine send the PCM data about what the engine is doing.
What are the symptoms of a bad ECM computer?
There are a few things that can tip you off that there’s a problem. Here are the four most common symptoms of a bad ECM computer: There are many reasons your Check Engine light can turn on. These range from emissions problems to faulty O2 sensors to problems with the ECM.
What is the PCM and what does it do?
PCM (Powertrain Control Module) Troubleshooting. The powertrain control module, otherwise known as the PCM or computer, is essentially your vehicle’s brain. It is responsible for the health running of your vehicle’s engine.
When to replace your PCM ( and when not to )?
The onboard computer is the brains of the engine control system, so when the brain isn’t functioning correctly neither is the engine or anything else that the microprocessor controls – which may include the charging system, transmission, various emission controls and communications with other onboard control modules.
Problems in the computer can lead to serious problems with almost every aspect of your car or truck because the computer has to work properly in order for everything else to follow suit. The PCM is what ultimately controls and regulates your fuel system. Different sensors in the engine send the PCM data about what the engine is doing.
PCM (Powertrain Control Module) Troubleshooting. The powertrain control module, otherwise known as the PCM or computer, is essentially your vehicle’s brain. It is responsible for the health running of your vehicle’s engine.
The onboard computer is the brains of the engine control system, so when the brain isn’t functioning correctly neither is the engine or anything else that the microprocessor controls – which may include the charging system, transmission, various emission controls and communications with other onboard control modules.
There are a few things that can tip you off that there’s a problem. Here are the four most common symptoms of a bad ECM computer: There are many reasons your Check Engine light can turn on. These range from emissions problems to faulty O2 sensors to problems with the ECM.