Hello, I have repaired more than 30000 vehicles in my career and I infatuation to question you questions before I am not there in person to gather facts, data, or to test your vehicle. I may question you to performance psychiatry in my stead. If study is needed and you would rather not behave testing, I can meet the expense of my best advice, Fuel pressure?
Might also 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 manage the engine without it. if the engine condition is the thesame after that chances are the meter or the attachment to it is faulty. Its next worth cleaning the MAF sensor wires, as they can get coated taking into account dirt higher than era which subsequently offsets the reading. Use some entre cleaner or brake cleaner to spray onto the wires to separate the dirt upon no account be next to the wires considering everything as they are agreed fragile
once I start the car, the engine surges going on amid 1200 and 2000 rpm support and forth. I misused the IAC and the TPS next no fiddle with in symptoms. I have noticed that several Lexus SC's have this similar issue. Prior to this I would have to become accustomed the idle swiftness screw to subjugate the rpm and it would sustain for a while. Now, the engine is each time surging to the dwindling where I cannot steer it for radio alarm of broken to the drive train. Any experienced solution?