Hello, I have repaired higher than 30000 vehicles in my career and I obsession to question you questions back I am not there in person to accumulate facts, data, or to test your vehicle. I may ask you to enactment study in my stead. If examination is needed and you would rather not perform testing, I can meet the expense of my best advice, Fuel pressure?
Might as a consequence be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can accomplish a quick fault locate if you unplug the meter and direct the engine without it. if the engine condition is the thesame later chances are the meter or the link to it is faulty. Its afterward worth cleaning the MAF sensor wires, as they can acquire coated later dirt higher than grow old which subsequently offsets the reading. Use some gate cleaner or brake cleaner to vaporizer onto the wires to surgically remove the dirt on no account be adjacent to the wires following whatever as they are definitely fragile
in the manner of I start the car, the engine surges occurring in the middle of 1200 and 2000 rpm urge on and forth. I changed the IAC and the TPS taking into account no bend in symptoms. I have noticed that several Lexus SC's have this same issue. Prior to this I would have to become accustomed the idle readiness screw to humiliate the rpm and it would support for a while. Now, the engine is for eternity surging to the point where I cannot steer it for apprehension of damage to the steer train. Any experienced solution?