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TPS variable at closed position


Peter Snowdon

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Hello Peter - we have had the same problem with an older vehicle which runs an separate trans ECU and it is giving us a small feedback. This vehicle was undrivable when cold and dyno runs showed varied mixture between runs without any changes. We found the TPS would fluctuate up to 1.7% and the ECU was sometimes giving acceration enrichment. To overcome this I altered the TPS lockout in the idle menu, the TPS deadband in the acceleration menu, TPS threshold in the overrun fuel cut menu. With a bit of fine tuning I was able to overcome the problem and the car now runs sweet. Another little trick I did was reset the TPS with the variance held on, Eg I held the throttle on 1.7% when it asked for the TPS closed while calibrating the TPS. Not the best thing to do but if it works and doesn't cause other issues then its a good thing. Good luck and I hope this has been helpful. Cheers

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