Hello, I have repaired exceeding 30000 vehicles in my career and I need to ask you questions before I am not there in person to hoard facts, data, or to exam your vehicle. I may question you to decree chemical analysis in my stead. If psychoanalysis is needed and you would rather not be active testing, I can give my best advice, Fuel pressure?
Might furthermore be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can reach a fast defect locate if you unplug the meter and run the engine without it. if the engine condition is the thesame subsequently chances are the meter or the attachment to it is faulty. Its moreover worth cleaning the MAF sensor wires, as they can acquire coated subsequently dirt exceeding become old which later offsets the reading. Use some read cleaner or brake cleaner to vaporizer onto the wires to sever the dirt on no account be adjacent to the wires later everything as they are categorically fragile
past I begin the car, the engine surges occurring with 1200 and 2000 rpm urge on and forth. I distorted the IAC and the TPS subsequently no alter in symptoms. I have noticed that several Lexus SC's have this similar issue. Prior to this I would have to accustom yourself the idle zeal screw to belittle the rpm and it would withhold for a while. Now, the engine is at all times surging to the narrowing where I cannot drive it for warning of broken to the steer train. Any experienced solution?