How do I know if my engine control module is bad?
These are the symptoms of a bad or failing engine control unit (ECU)
- Check Engine Light comes on. An illuminated Check Engine Light is one possible symptom of a problem with the ECU.
- Engine stalling or misfiring. Another symptom of a bad or failing ECU is erratic engine behavior.
- Engine performance issues.
- Car not starting.
What happens when engine control module goes bad?
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. The engine may still crank, but it will not be able to start without the vital inputs from the computer.
What does an engine control module do?
An engine control unit (ECU), also commonly called an engine control module (ECM) is a type of electronic control unit that controls a series of actuators on an internal combustion engine to ensure optimal engine performance.
Where is the ECM module located?
In most vehicles, the ECM is located in the engine compartment. Some vehicles have the ECM mounted under the driver’s or passenger seat, however.
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.
What causes the ECM to go bad?
Corrosion on the wiring harness and increased moisture are common causes of faulty ECMs. Moisture may enter through corroded ECM seals, which is common in old cars (5 to 10 years). Moisture may also corrode the wiring harness around the electronic fuel solenoid and cause a short in the ECM.
How much does it cost to replace the engine control module?
How much does it cost to reprogram engine control module?
If the engine control module just needs to be tested, analyzed, and reprogrammed, it should cost you between $150 and $300. As with buying new, if you have someone else install your replacement remanufactured ECM, you could be looking at additional hundreds of dollars of labor costs.
Can I drive my car with a bad ECM?
If the ECM were to become damaged or faulty, then it could spell trouble for the entire engine because it would not be managed properly. If the engine is not managed properly, then it is not going to operate properly and then your car won’t work properly.
How much does it cost to replace ECM?
How long does it take to replace an engine control module?
If you take your car into a dealer to replace the ECM, it will usually take about an hour or two.