Hello, I have repaired higher than 30000 vehicles in my career and I obsession to ask you questions before I am not there in person to store up facts, data, or to exam your vehicle. I may question you to perform chemical analysis in my stead. If scrutiny is needed and you would rather not work testing, I can have enough money my best advice, Fuel pressure?
I started the car stirring this morning, it starts up and runs at 1750 and within a minute or thus climbs on top of 2500.. It is organization mild though, just mannerism cutting edge than it should be. I as a consequence checked the throttle screw plate/return screw, purposefully turned it out and nothing changed. put it help to exactly where it was. No vacuum leak sounds and every contacts verified. I environment fine approximately them as I've been in there a bunch of times..
later than I start the car, the engine surges stirring amongst 1200 and 2000 rpm encourage and forth. I misrepresented the IAC and the TPS with no tweak in symptoms. I have noticed that several Lexus SC's have this same issue. Prior to this I would have to acclimatize the idle zeal screw to subjugate the rpm and it would preserve for a while. Now, the engine is all the time surging to the reduction where I cannot steer it for alarm clock of damage to the steer train. Any experienced solution?