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Thread: Vectra C 2.2DTH P0335 P0638 P0100 DTC

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    Default Vectra C 2.2DTH P0335 P0638 P0100 DTC

    I have a 2.2 DTH Vectra C. Recently when accelerating hard over 3500 RPM my spanner light comes on the dash and lights up. So i checked the trouble codes and they came up as P0335 Crank shaft sensor, P0638 Throttle control circuit high AND P0100 Mass air flow sensor circuit. After re-setting the codes i took the car for a drive and straight away it done the same, so i checked the codes again and P0100 came up on its own. So i purchased a new air flow meter thinking that i had solved the problem. But sure enough it done the exact same thing!!! Has any one any bright ideas PLEASE HELP

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    how are you checking the codes?

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    By using Tech 2, I have since discovered that i had a damaged wiring loom going to the crank sensor so i have repaired that but still having probs with the P0100 Mass air flow fault...

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