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 gather facts, data, or to exam your vehicle. I may question you to take action psychiatry in my stead. If assay is needed and you would rather not play in testing, I can allow my best advice, Fuel pressure?
I did re-check them tho. The master tech did extensive tests on the freshen flow meter and said it was good. behind I unplug it and govern the motor, the car runs rasping and at 850ish. I can abandoned guess that my supplementary rebuilt ecu has an issue, or the tps needs to be re-adjusted, or someway my maf has died in the midst of all this. I don't think the tps has that much rule in the oscillate of rpm though? I think it only adjusts it on 1k..
with I start the car, the engine surges going on surrounded by 1200 and 2000 rpm assist and forth. I tainted the IAC and the TPS taking into account no tweak in symptoms. I have noticed that several Lexus SC's have this thesame issue. Prior to this I would have to acclimatize the idle rapidity screw to lower the rpm and it would sustain for a while. Now, the engine is for all time surging to the narrowing where I cannot drive it for anxiety of broken to the drive train. Any experienced solution?