WebIf you guessed the crankshaft position sensor, then you would be correct. Set up the scanner to read engine RPM and crank the engine. The scan tool should read between 100 and 500 RPM. A bad reading indicates that the crankshaft sensor isn't working right. A reading of zero indicates that the crankshaft sensor has failed completely. WebOct 13, 2016 · Because the PCM controls the emissions of your car, a failed emissions test or the presence of oddly-colored or foul smelling exhaust may be a sign that your PCM is …
7.3 diesel pcm gone bad??? - Ford Powerstroke Diesel Forum
WebApr 19, 2024 · The best way to diagnose an issue with this system is to go to a qualified auto-electrician. They have specialized equipment that allows them to read the error … Web3. Your Engine Stutters or Misfires. A rich fuel-to-air ratio can cause your engine to misfire, while a lean ratio can cause stuttering when it periodically fails to ignite. Similar problems can be caused directly by an improperly-adjusted engine timing. Either way, it’s possible that your ECM is causing the problem. 12立方水等于多少吨
Symptoms of a Bad or Failing Engine Control Module (ECM)
WebJun 27, 2024 · What Are the Symptoms of a Bad PCM? Because the PCM is responsible for a wide range of vehicle operations, it can cause many problems when it fails. Here are … WebSep 2, 2024 · Here are steps to diagnose the problem using a scanner: Connect the OBD or OBDII scanner to the Caravan's diagnostic port. Turn on the scanner and select the "PCM" … WebFeb 8, 2024 · Source: advanceautoparts. A trouble with the PCM means it cannot determine the correct fuel mixture and sends the engine either more or less fuel than it requires. When the engine gets more, the carbon emission increases and fuel economy drops. In case of the opposite, the engine will choke, stutter, and stall sometimes. 12符咒的作用