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International Automotive Technicians Network
Re: Is this a failing crank sensor? 88 Buick 3.8
Posted to Technical Discussion Forum on 12/7/1997

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Well, gang, this car had both a bad module AND a bad crank sensor. If you recall, this waveform demonstrates the module failure [...] and the subsequent code 41 for a cam sensor switch that the ECM co... Login to read more.