I have a 1994 Lexus ES300 and when i first start it up in the morning the idle loops up and down and wants to turn off but remains on and no check engine light is on. Help

30

Asked by May 14, 2012 at 03:47 PM about the 1994 Lexus ES 300 FWD

Question type: Maintenance & Repair

2 Answers

299,425

I think your throttle body need to be cleaned of carbon. Start there. Could also be a dirty MAF (Mass Air Flow Sensor).

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30

I cleaned out the Throttle body and the MAF sensor at the same time not long ago. What else can it be? Maybe a TPS sensor????

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