WebJun 15, 2024 · These are the seven most common signs of a bad ECU, and you have to check those symptoms to be certain your car ECU computer is going bad. 1. Car Won’t Start. Car Won’t Start. The engine control unit has control all over the car. So, the ECU computer must be working properly to start the engine and run it. WebFeb 23, 2024 · Here is a more detailed list of the most common cause of engine misfires: 1. Bad Ignition Coil. The most common cause of an engine misfire is a bad or failing ignition coil. Some vehicles have a separate ignition coil on every spark plug, while some cars have one coil pack with an ignition wire to each spark plug.

Bad ECU Symptoms and Replacement Cost CarTreatments.com

WebMar 26, 2024 · 5) Car Won’t Start. If your car simply does not start and you can’t figure out why, then it may be because the engine control module has gone bad or stopped functioning completely. You may still get your engine to crank but that’s all it will do. If the engine control unit is not working, then it won’t be able to send electronic input ... easiest european country to get a job

Engine Control Module ECM Your Car

WebSep 29, 2014 · Kris is correct. There's no way to check/test an ECU/ECM. I'd check for fuel and spark. If you have both of those and it won't start, you might wanna take it to the dealer and let them figure it out.....since a new ECM is around $350 and they won't let you return it once it has been installed. It would be great if you could find somebody near ... WebMar 2, 2024 · PCM Replacement Cost. The PCM is a computer, and computers aren’t cheap to replace. That’s why the average PCM replacement cost is anywhere between $800 and $1,500, depending on the car model and labor costs. Even worse, this is almost all in the cost of the PCM itself. Labor typically only runs between $75 and $100. WebJan 7, 2016 · Symptoms of a Bad or Failing Engine Control Module (ECM) 1. Check Engine Light Turns On. An illuminated Check Engine Light is one … ctv news email