Hello, I have repaired exceeding 30000 vehicles in my career and I habit to question you questions previously I am not there in person to assemble facts, data, or to test your vehicle. I may ask you to undertaking breakdown in my stead. If breakdown is needed and you would rather not feign testing, I can manage to 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 realize a quick idiosyncrasy locate if you unplug the meter and control the engine without it. if the engine condition is the thesame subsequently chances are the meter or the relationship to it is faulty. Its then worth cleaning the MAF sensor wires, as they can get coated in the same way as dirt on top of get older which next offsets the reading. Use some edit cleaner or brake cleaner to spray onto the wires to sever the dirt on no account lie alongside the wires subsequent to anything as they are utterly fragile
in imitation of I start the car, the engine surges up in the company of 1200 and 2000 rpm support and forth. I misused the IAC and the TPS subsequent to no fine-tune in symptoms. I have noticed that several Lexus SC's have this similar issue. Prior to this I would have to adapt the idle rapidity screw to subjugate the rpm and it would maintain for a while. Now, the engine is continually surging to the tapering off where I cannot steer it for alarm clock of damage to the steer train. Any experienced solution?