9. Can a faulty ECM be repaired, or does it need to be replaced? In some cases, a faulty ECM can be repaired by a skilled technician, particularly if the issue is related to a specific component within the ECM. However, in many cases, replacement may be the most reliable solution. 10...
ECM (engine control module) is an integral part of every vehicle to ensure that the car engine operates at optimal performance. There are many cases where your car has problems and cannot start due to a faulty ECM. Therefore, knowing the symptoms of a bad ECM and finding solutions to tackl...
These ECM failure symptoms don’t necessarily mean that it’s time to panic. Often, the cause of the problem is an affordable sensor or a faulty wire. The only way to know for sure is to perform a thorough diagnosis. Some of the articles we’ve linked provide helpful advice on checking...
Fuel Odor: A faulty purge valve may not properly seal the fuel vapors, which can sometimes result in a noticeable smell of fuel around the vehicle. Damages to Other Components: A faulty purge valve can cause pressure to build up in the gas tank, which can in turn damage other components ...
A strange smell is one of thefaulty map sensor symptomsyou should know. A bad MAP sensor will cause the wrong amount of air and fuel to be mixed in the combustion chamber. Sometimes there will be a little amount of air and fuel mixed in there while other times, there will be too much...
Lots of problems arise when an engine control unit goes bad. It’s not surprising, considering the ECU is the brains of an engine. The symptoms listed below can be caused by other problems, so don’t just assume that your ECU is faulty if you have them. Always diagnose the root cause...
Hard Starting: Engine starting requires more fuel than idling, but the ECM may not command enough fuel injection to start the engine right away if the MAF sensor signal is skewed. These issues don’t always mean that your MAF sensor is faulty. A vacuum leak, a clogged air filter, restrict...
One of the most serious PCM failure symptoms is irregular shifting. This generally happens because of a faulty sensor, or because water has damaged some of the circuits in your car’s PCM or TCM. If your automatic transmission vehicle isn’t shifting normally, take it to a mechanicimmediately...
A bad purge valve can cause a variety of symptoms that can negatively affect your vehicle’s performance and emissions. Symptoms may include a check engine light, rough idle, poor fuel efficiency, hard starting, and emissions issues. If you suspect that your vehicle’s purge valve is faulty,...