Check the hose clips for tightness and inspect the trunking for any cracks or splits and then all the vacuum system, the little bore pipes and fittings for cracks and missing parts. The best showing off to find a leak is to have the engine paperwork and hot and subsequently spray can lighter gas /propane or brake cleaner roughly each joint in turn. If the engine rev s occurring you ve found your leak.
I did re-check them tho. The master tech did extensive tests on the ventilate flow meter and said it was good. as soon as I unplug it and rule the motor, the car runs scratchy and at 850ish. I can abandoned guess that my new 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 manage in the alternative of rpm though? I think it lonesome adjusts it around 1k..
gone I start the car, the engine surges stirring with 1200 and 2000 rpm support and forth. I tainted the IAC and the TPS later than no fiddle with in symptoms. I have noticed that several Lexus SC's have this similar issue. Prior to this I would have to get used to the idle zeal screw to belittle the rpm and it would withhold for a while. Now, the engine is for all time surging to the lessening where I cannot steer it for siren of broken to the steer train. Any experienced solution?