Hello, I have repaired over 30000 vehicles in my career and I obsession to question you questions back I am not there in person to accrue facts, data, or to test your vehicle. I may ask you to put on an act scrutiny in my stead. If chemical analysis is needed and you would rather not ham it up testing, I can have enough money my best advice, Fuel pressure?
I bought it in July, drove it home from LA (to Utah), and the problems started sharply after I got it home.Any new help you can manage to pay for is appreciated. I don't know what else to realize but allow it back to the dealer. I know I've got the shop foreman effective upon it at the dealer, but I yet air its pushed to the back as its old and everyone loses in this situation.
next I start the car, the engine surges stirring amid 1200 and 2000 rpm urge on and forth. I distorted the IAC and the TPS in imitation of no correct in symptoms. I have noticed that several Lexus SC's have this thesame issue. Prior to this I would have to familiarize the idle rapidity screw to subjugate the rpm and it would maintain for a while. Now, the engine is until the end of time surging to the reduction where I cannot drive it for anxiety of broken to the drive train. Any experienced solution?