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On some modern cars, the ECM controls everything from timing to the fuel pump. Many others are not as reliant on it though. It depends on what type of car you have but if it's 2007 or newer, I doubt it would even turn over. If it's older and there's an issue with the ECM, you might notice it not to running as smoothly.
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Why no voltage to Crank sensor in jaguar xj6?
Bad ECM or ECM relay.
Will a bad ecm cause engine not to start?
Yes
Will the fuel pump and coil packs stop working if the ecm is bad?
The ECM seldom goes bad, it can but it rarely does. A faulty crank sensor could give you those same symptoms. Check all other possibilities before you condem the ECM.
Why did your car stop running while you were driving?
Bad ecm
Why won't an ISX engine crank?
Number of possibilities.. bad batteries, bad starter, faulty connector the starter, bad ECM, faulty connection to the ECM. Can't narrow it down without knowing more details.
Your ecm is not getting power?
Blown fuse, bad connection, or ground.
Why would a new fuel injector not work on a 1987 Pontiac 6000 LE that has fuel to the throttle body and electrical current to the injector?
The ECM is supposed to ground the injector to make it work. Either the ECM is bad or something that tells the ecm to fire the injector is bad. TAke it to a mechanic.
What would cause a 1992 Toyota Paseo radiator fan not to turn on?
Radiator fan could be bad, fan relay bad, fuse blown. Also if your ECT (engine coolant temperature) sensor is bad the ECM (computer) won't know to tell the fan to turn on.
Why won't cold car start it is a 94 Infiniti J30?
There could be any number of problems causing a no start condition. No fuel, no spark, bad timing, clogged fuel filter, bad fuel pump, ECM bad, ECM fuse bad, Ignition fuse bad.... Too many to list.
How do you know if ecm is bad?
Plug in a code reader. If you get no response, bad ECM or a bad wire/fuse going to or from it. But you may get symptoms of stalling,lack of power,bad fuel milage, and many more things that just don't seem right. But the code scanner will be you best angle of attack.
How can you tell if ECM in 2002 dodge ram van 3500 is bad?
The best way to tell on chrysler products you will have a data loss to your instrument panel and it will say no bus and most of your warning indicators on dash will be on, No data to diagnostic equipment or communication and of course stalling and a no start condition. Keenan Laws owner of Advanced Automotive tech Automotive ecm rebiulders 419-601-4369
How do you know if the ecm computer is going bad in a 2001 mitsubishi galant es?
You
