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TECHPRO49, ASE Certified Technician
Category: Toyota
Satisfied Customers: 557
Experience:  Owner at Baltic investments
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Previa rough idle, hesitation after parked for a week. will

Customer Question

previa rough idle, hesitation after parked for a week. will eventually clear itself after several days driving.
JA: Is the rough idle intermittent or consistent?
Customer: both.. will be consistant for a while then inconsistant
JA: What year is your Previa?
Customer: 91, 300,000 kms
JA: Are you fixing your Previa yourself? What have you tried so far?
Customer: yes, checked codes, nothing.. tps, egr, injectors, dist cap and rotor Ll checked, fuel filter replaced, upstream o2 sensor replaced,
JA: Anything else you want the mechanic to know before I connect you?
Customer: that's about all
Submitted: 2 months ago.
Category: Toyota
Expert:  TECHPRO49 replied 2 months ago.

Have you clean the throttle body and IAC valve?