How long does it take to Replace the PCM?
The process takes around about half an hour, but keep in mind that most auto-electricians charge you for at least one hour of work. PCM reprogramming is also one of the few times we’ll recommend a dealership over an independent mechanic.
What is the ECM and ECU in a Hyundai?
All Hyundai PCM (Powertrain Control Module) Hyundai ECM (Engine Control Module) & Hyundai ECU (Electronic Control Unit) from Flagship One, Inc. are precisely programmed and flashed to meet your vehicle’s specific requirements.
Can a bad ECM cause a car to be undrivable?
When the ECM has any issues, it can cause all sorts of problems with the vehicle, and in some cases even render it undrivable. A bad or failing ECM may produce any of the following 5 symptoms to alert the driver of a potential problem.
Can a bad PCM cause a car to run poorly?
In other cases, the vehicle may run poorly. Continuing to run a vehicle with a bad PCM could cause further damage. Because the PCM controls the emissions of your car, a failed emissions test or the presence of oddly-colored or foul smelling exhaust may be a sign that your PCM is going bad.
What to do if your ECM is not working?
If your car seems to run fine but the Check Engine light won’t turn off, your ECM may be at fault. The only way to be sure is to visit a mechanic with the proper computer. They can analyze your vehicle’s error codes, and let you know exactly what the problem is.
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.
Can a PCM be installed in the same car?
Many PCMs appear to be exactly the same on the outside (same sized box and connectors) but may be wired or calibrated differently inside. If the wrong PCM is installed in a vehicle, it may run but probably won’t run well. Close enough isn’t good enough when it comes to replacing PCMs. It must be the correct replacement for the application.
What happens if you replace the solenoid on a PCM?
If the shorted solenoid or actuator isn’t found and repaired, the voltage overload it creates may damage the replacement PCM, too. As for environmental factors, water is the main thing to avoid. If water gets inside a PCM, it can short circuits and set up irreversible corrosion that ruins electronic connections.
What should I do if my PCM is not in stock?
If a particular PCM is not in stock or is unavailable, you can often send the old PCM to a remanufacturer for repair. Turn around time is typically a few days and the cost is the same as selling him an exchange unit from stock (except there’s no core charge). Some PCMs, though, may not be repairable.