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A check engine light, poor performance and in some cases no start.

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15y ago

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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.


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.


Do you have a bad ecm 1986 camaro z28?

If your 1986 Camaro Z28 is experiencing issues, it could potentially be related to a faulty Engine Control Module (ECM). Symptoms of a bad ECM may include erratic engine performance, poor fuel efficiency, or trouble codes indicating electrical issues. It's advisable to diagnose the problem using an OBD scanner or consult a mechanic to confirm if the ECM is the culprit. If it is indeed bad, replacing it could restore your vehicle's performance.


What are the symptoms of a bad ECM on a 2006 CTS 3.6L v-6?

Symptoms of a bad ECM (Engine Control Module) on a 2006 CTS 3.6L V6 can include poor engine performance, such as rough idling or stalling. You may also experience issues with acceleration, erratic fuel consumption, and warning lights on the dashboard, particularly the check engine light. Additionally, the vehicle may exhibit difficulty starting or may not start at all. Diagnostics should be conducted to confirm ECM issues, as other components can cause similar symptoms.


Why no voltage to Crank sensor in jaguar xj6?

Bad ECM or ECM relay.


What are the symptoms of a bad ECM on a 2000 Dodge Intrepid?

if your ecm is bad, first off the car won't start, your fuel pump won't work, no spark, basically everything shuts down Ok the above can be symptoms of a bad ECM, But that's not the only answer. Your car's Check Engine light will definitely be on. Your car may run like the timing is off, and not get up to speed. Get someone (a mechanic or Auto Zone) to run their code scanner on your car. If it throws out codes that show Ignition Coil A-E failure, CKP and CMP imminent failure, TPS and Pedal Sensor High Circuit, TPS and Pedal Sensor Low Cicuit, MAP and BARO Sensor High and Low. Then you definitely need to get the ECM checked out and replaced. This just happened top a car I worked on and when the ECM was replaced it fixed everything.


Will a bad ecm cause engine not to start?

Yes


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.


Why did your car stop running while you were driving?

Bad ecm


Your ecm is not getting power?

Blown fuse, bad connection, or ground.


What are the symptoms of a bad TDC sensor?

what are the symptoms of bad tdc o2 sensor


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.

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