Question about 1991 Oldsmobile Cutlass Calais
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Posted on Jan 02, 2017
Check the wire from the module to the crank sensor. They go bad. Usually from oil leaks. Is it saturated with oil where it goes under the engine? Also check for power and ground on the two wire plug on the drivers side of the module. It isn't the ecm or anything with it. The ignition system on the 3.1 will work with the ecm unplugged. The ignition system is a stand alone system. It sends signals to the ecm for the fuel injection.
Posted on Jun 18, 2010
SOURCE: where is the crank shaft
on the 3.4 liter engine, it's behind the harmonic balancer--you have to remove the crankshaft pulley/balancer to see it.
if you have the 2.4 liter, it's just above the oil filter:
Posted on Nov 13, 2010
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