Check the hose clips for tightness and examine the trunking for any cracks or splits and as a consequence every the vacuum system, the small bore pipes and fittings for cracks and missing parts. The best quirk to find a leak is to have the engine running and hot and after that vaporizer lighter gas /propane or brake cleaner roughly each joint in turn. If the engine rev s going on you ve found your leak.
I did re-check them tho. The master tech did extensive tests on the let breathe flow meter and said it was good. subsequently I unplug it and rule the motor, the car runs uncompromising and at 850ish. I can forlorn guess that my new rebuilt ecu has an issue, or the tps needs to be re-adjusted, or anyhow my maf has died in the midst of every this. I don't think the tps has that much run in the substitute of rpm though? I think it single-handedly adjusts it more or less 1k..
like I start the car, the engine surges stirring along with 1200 and 2000 rpm back and forth. I misrepresented the IAC and the TPS bearing in mind no change in symptoms. I have noticed that several Lexus SC's have this thesame issue. Prior to this I would have to familiarize the idle quickness screw to degrade the rpm and it would retain for a while. Now, the engine is permanently surging to the point where I cannot drive it for buzzer of broken to the drive train. Any experienced solution?