Engine Computer
Shop online for top-tier OEM PCM, ECM, PCU, and ECU replacements tailored to your car’s make and model. Our extensive selection guarantees a perfect fit, sourced directly from salvage yards, cleaned, and inspected. Experience the best quality engine computers at competitive prices. Explore our inventory by make, model, year, or part number for a direct ECM replacement. Ensure a seamless fit by matching the part numbers on your engine computer tag with those on our quality replacements. At OEM Used Auto Parts, discover the perfect used engine control modules for all popular models and drive with confidence.
Best Match
Select...
Select...
Select...
Make :
VOLKSWAGENModel :
PASSAT
Make :
BMWModel :
320I
Make :
KIAModel :
FORTE
Make :
KIAModel :
SOUL
Make :
FORDModel :
FOCUS
Make :
MERCEDES-BENZModel :
CLA250
Make :
TOYOTAModel :
MATRIX
Make :
KIAModel :
OPTIMAECU Replacement FAQs
1. What is the difference between ECU, ECM, and PCM?
An ECU is the Engine Control Unit, an ECM is the Engine Control Module, and a PCM is the Powertrain Control Module. These terms are used interchangeably but can sometimes have precise applications or functions within the vehicle’s electronic control system, so checking your model specifications is essential.
2. Does a used ECM need to be reprogrammed?
Depending on your vehicle’s make and model, reprogramming may be required for optimal performance when it comes to an ECM replacement or used engine computer. Always check manufacturer guidelines or contact us to determine if reprogramming is required for a particular used ECM.
3. What should I do after replacing an ECU?
After installing your engine control computer replacement, it is advisable to perform an initialization or reprogramming procedure and check for diagnostic trouble codes specified by your vehicle’s manufacturer. This ensures proper integration with the car’s systems.