Are you saying that your tach indicates 500 rpm but it measures 800 rpm on a computer?

800 rpm is very high for idle. I would suspect that when idling with the car in "D", it would want to 'creep' (maybe even jump) forward, requiring a firm brake pedal.



[Edited by JimF on 05-18-2001 at 09:59 AM]

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'94 S500 Cpe

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