My name is David ,I live in Austin Texas and do alot of mecchanic / technician work around town. I do have my certifications and have work at dealerships and Autozone as well...with all that being said... if you are not getting spark on this vehicleand it is not likely the coils or the module. The crank position sensor the device responsible for reading the angle ( timing ) of the crankshaft. The crankshaft has notches in it that pass either through or near the crank position sensors magnetic tip. The ignition module then interprets the signal and allows signal ( electrical current) to pass into module and on to ignition coils...then on to spark plugs via spark plug wires/cables. The crank position sensor is located on the back side of the engine in the gap between the engine and transmission housing. it is held in place by one 8mm (metric size) or 5/16 standard size bolt. Use a wrench though unless you have small hands or a 1/4 drive socket set. 9.99 times out of ten it will start if there are no other issues... your welcome
Its under the hood on the right side of the inner fender well covered up with a black plastic shield
To nicolee - we had same problems, car wouldn't start replaced coils still wouldn't start. Replaced ignition control module, started right up. I have a 1990 Buick Regal 3.8
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the ecm/ecu you can find beyond the hood on the right side of the car,just in front of the shock absorber,beyond a black plastic cap...there is a diagnostic plug inside,on the dashboard,on the right side of the steering wheel...I'm looking for the wiring diagram for a 2.8 buick regal,can you help me out? greetz jim
i have the same problem i replaced the coils all three and still wont start
how are you going to test the ECM? there is no test.
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