Hello, I have repaired beyond 30000 vehicles in my career and I dependence to ask you questions back I am not there in person to accumulate facts, data, or to exam your vehicle. I may ask you to appear in laboratory analysis in my stead. If examination is needed and you would rather not perform testing, I can provide my best advice, Fuel pressure?
Thanks for your response. I just checked what you mentioned, that I hadn't already checked, except fuel pressure.Let me tell you a tiny more just about the misery history. It currently has a master tech official idle air rule valve and tps installed. without distressing anything, the last (used) ecu and my original, would control in the car without this symptom.
similar to I begin the car, the engine surges in the works with 1200 and 2000 rpm put up to and forth. I misrepresented the IAC and the TPS following no amend in symptoms. I have noticed that several Lexus SC's have this similar issue. Prior to this I would have to acclimatize the idle keenness screw to humiliate the rpm and it would preserve for a while. Now, the engine is continually surging to the dwindling where I cannot steer it for bell of broken to the drive train. Any experienced solution?