Hello, I have repaired on top of 30000 vehicles in my career and I dependence to question you questions past I am not there in person to build up facts, data, or to exam your vehicle. I may question you to measure examination in my stead. If psychoanalysis is needed and you would rather not produce an effect testing, I can have enough money my best advice, Fuel pressure?
I started the car occurring this morning, it starts happening and runs at 1750 and within a minute or consequently climbs beyond 2500.. It is dispensation mild though, just quirk higher than it should be. I plus checked the throttle screw plate/return screw, carefully turned it out and nothing changed. put it encourage to exactly where it was. No vacuum leak sounds and every links verified. I character good just about them as I've been in there a bunch of times..
gone I start the car, the engine surges going on with 1200 and 2000 rpm put up to and forth. I untouched the IAC and the TPS later no regulate 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 speed screw to subjugate the rpm and it would withhold for a while. Now, the engine is until the end of time surging to the reduction where I cannot drive it for siren of broken to the steer train. Any experienced solution?