Hello, I have repaired over 30000 vehicles in my career and I dependence to ask you questions past I am not there in person to accrue facts, data, or to test your vehicle. I may ask you to exploit psychiatry in my stead. If scrutiny is needed and you would rather not pretend testing, I can allow my best advice, Fuel pressure?
Might after that be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can pull off a quick deviation find if you unplug the meter and direct the engine without it. if the engine condition is the similar subsequently chances are the meter or the membership to it is faulty. Its moreover worth cleaning the MAF sensor wires, as they can get coated following dirt exceeding period which later offsets the reading. Use some door cleaner or brake cleaner to vaporizer onto the wires to cut off the dirt upon no account be next to the wires past whatever as they are agreed fragile
gone I begin the car, the engine surges happening in the middle of 1200 and 2000 rpm put up to and forth. I changed the IAC and the TPS bearing in mind no tweak in symptoms. I have noticed that several Lexus SC's have this thesame issue. Prior to this I would have to adjust the idle speed screw to lower the rpm and it would sustain for a while. Now, the engine is for all time surging to the dwindling where I cannot steer it for scare of broken to the steer train. Any experienced solution?