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

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

Question type: Maintenance & Repair

2 Answers

228,265

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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20

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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