Hello, I have repaired exceeding 30000 vehicles in my career and I compulsion to question you questions previously I am not there in person to gather facts, data, or to test your vehicle. I may ask you to put on an act psychoanalysis in my stead. If study is needed and you would rather not put-on testing, I can come up with the money for my best advice, Fuel pressure?
Might with be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can get a fast defect find if you unplug the meter and manage the engine without it. if the engine condition is the same later chances are the meter or the link to it is faulty. Its as a consequence worth cleaning the MAF sensor wires, as they can acquire coated like dirt greater than become old which later offsets the reading. Use some gate cleaner or brake cleaner to spray can onto the wires to separate the dirt on no account lie alongside the wires considering everything as they are enormously fragile
as soon as I start the car, the engine surges stirring amongst 1200 and 2000 rpm support and forth. I changed the IAC and the TPS taking into consideration no change in symptoms. I have noticed that several Lexus SC’s have this same issue. Prior to this I would have to familiarize the idle promptness screw to humiliate the rpm and it would hold for a while. Now, the engine is continuously surging to the lessening where I cannot drive it for danger signal of damage to the drive train. Any experienced solution?
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