What are the symptoms of a bad engine control module?

How do I know if my ECM is bad?

The Most Common ECM Failure Symptoms

  1. Your ‘Check Engine’ Light Is On. Your car’s check engine light is a sort of catch-all that many people ignore. …
  2. Your Car Won’t Start. …
  3. Your Engine Stutters or Misfires. …
  4. Sudden Drop in Fuel Economy. …
  5. Sudden Loss of Acceleration. …
  6. Your Engine Shuts Off for No Reason. …
  7. Rough or Irregular Shifting.

How much does it cost to replace an engine control module?

The cost for the new ECM will typically be around $800, with labor around $100, bringing the average total expense for an ECM replacement to approximately $900 before taxes and fees. This can increase depending on the shop you go to or the type of car you, running as high as $2,000.

Can you drive with a bad ECM?

4. Car Not Starting. A bad ECM may lead to a vehicle that won’t or is difficult to start. If the ECM fails completely, it will leave the vehicle without engine management control, and will not start or run as a result.

How do you fix a bad ECM?

To be sure it is an issue with the computer and not something else, you can try replacing the cam sensor first. If it still persists, you can try wiping the ECM connectors clean. If after that the problem does not go away, it means your ECM is about to fail and needs to be replaced.

THIS IS IMPORTANT:  Quick Answer: How heavy is a b18 engine?

How long does an engine control module last?

An ECU is meant to last the lifespan of the vehicle, or at least 100,000 with proper maintenance.

How do I know if I need to replace my PCM?

7 Common PCM Failure Symptoms

  • Your ‘Check Engine’ Light is On. …
  • Your Car Won’t Start or Starts Roughly. …
  • Sudden Loss of Gas Mileage. …
  • You Failed Your Emissions Test. …
  • Your Engine Stutters or Stalls. …
  • Erratic or Random Shifting. …
  • You’re Receiving a PCM-Related Error Code. …
  • What to Do If You Experience PCM Failure Symptoms.