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Q: misfire / engine cutting off on 1999 Pontiac Bonneville

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
how do you test or check the crankshaft position sensor and mass air flow sensor
No car image 94a1663db56199c5353592009e34aaa51078a2469bed068bb8d6f0ba43accf97
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most techs will use a scope to watch the patterns. a shop can do this for you for a nominal fee. that will pinpoint your failure, if they are suspected.
did you check the basics first, like plugs, wires and coils??

Roy
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