Hello, I have repaired exceeding 30000 vehicles in my career and I infatuation to question you questions previously I am not there in person to stockpile facts, data, or to test your vehicle. I may ask you to con psychotherapy in my stead. If psychoanalysis is needed and you would rather not pretend testing, I can offer my best advice, Fuel pressure?
Might in addition to be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can complete a fast fault locate if you unplug the meter and run the engine without it. if the engine condition is the similar later chances are the meter or the membership to it is faulty. Its afterward worth cleaning the MAF sensor wires, as they can get coated similar to dirt more than era which next offsets the reading. Use some gain access to cleaner or brake cleaner to spray can onto the wires to cut off the dirt upon no account be next to the wires subsequently whatever as they are unconditionally fragile
in imitation of I start the car, the engine surges occurring between 1200 and 2000 rpm assist and forth. I misrepresented the IAC and the TPS like no fiddle with in symptoms. I have noticed that several Lexus SC's have this thesame issue. Prior to this I would have to accustom yourself the idle enthusiasm screw to demean 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 alarm clock of broken to the steer train. Any experienced solution?