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Re: 1987 buick Lesabre
Posted to Technical Discussion Forum on 4/3/2007 1 Reply

Ok then you don't need to verifiey the signal that's mean that your crank sensor is ok. The ecm don't have nothing to do with the ignition system in these years. Only need the signal from the module for the injetion sequence(REF HI) and the timing(EST)

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