My aunts car does not fire on all six of her 2.8L. It was the center 3,6 coil, I switched with another coil, the coil is fine. After I switched it did work for a brief moment but quit after shut off and re-started the car. My friend told me to look for the power wire but I can not find a wire diagram online, money is tight. can you help?
Re: 1989 cehvy celebrity cumputer controler problem
HAVE YOU TRYED TO PUT A NEW ECU IN TO THE CAR THAT MIGHT BE THE PROBLIEM I HAVE A 1989 CELEBRITY AND THE COMPUTER WAS GOING OUT AND IT WOULD NOT LET IT START BUT WHEN I BOUGHT THE NE ECU IT LET ALL 4 CYLENDERS GO AND EVERY THING STARTED WORKING
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ignition will trigger if signal from crank sensor, with hei spark plug tester ,read to coil wire and spark plugs wire if spark , depends wich engine
if c3i coil and module the module could be the problems you can check it before replace
hope it helps
Famous scenerio.What went out first crank sensor, or ICM( ignition control module).The CKP is a magnetic pulse generator,It produces a AC signal.This sensor is suspect to failure from oil leaking through sensor.and the connector the location directly back of IC module if you have a 2.5,as for the 2.8 its center rear of engine above pan rail. As for the ICM it recieves the signal from CKP (7x) for coil firing sequence. This component is located under exhaust manifold it wear out because of heat.