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Potential Tuner
Cold start stumble
New to tuning. 2010 escalade, and having issues with cold start stumbling. Replaced, purge valve, vent tank, maf, tps sensor. When i replaced the tps sensor, cold start stumbling went away for about a week. This morning it started again. Wondering if there is an update or somthing i can do in hptuners to be able to update or rest the tps/throttle body. Anyone have this issue? Thanks
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Potential Tuner
Did u click the Throttle body Cleaned button? Then perform the Idle Learn procedure?