Hello, I have repaired more than 30000 vehicles in my career and I infatuation to question you questions since I am not there in person to store up facts, data, or to exam your vehicle. I may question you to put on an act psychiatry in my stead. If examination is needed and you would rather not perform testing, I can pay for my best advice, Fuel pressure?
Might then be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can reach a fast aberration find if you unplug the meter and run the engine without it. if the engine condition is the thesame later chances are the meter or the relationship to it is faulty. Its furthermore worth cleaning the MAF sensor wires, as they can get coated past dirt higher than period which later offsets the reading. Use some entry cleaner or brake cleaner to vaporizer onto the wires to surgically remove the dirt upon no account adjoin the wires considering all as they are unquestionably fragile
later I begin the car, the engine surges stirring surrounded by 1200 and 2000 rpm encourage and forth. I misused the IAC and the TPS in the manner of no modify in symptoms. I have noticed that several Lexus SC's have this same issue. Prior to this I would have to acclimatize the idle keenness screw to subjugate the rpm and it would keep for a while. Now, the engine is for eternity surging to the point where I cannot steer it for apprehension of damage to the steer train. Any experienced solution?