Check the hose clips for tightness and examine the trunking for any cracks or splits and along with all the vacuum system, the little bore pipes and fittings for cracks and missing parts. The best pretentiousness to locate a leak is to have the engine government and hot and then spray can lighter gas /propane or brake cleaner on the order of 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 expose flow meter and said it was good. like I unplug it and govern the motor, the car runs uncompromising and at 850ish. I can unaided guess that my supplementary rebuilt ecu has an issue, or the tps needs to be re-adjusted, or somehow my maf has died in the midst of every this. I don't think the tps has that much run in the every second of rpm though? I think it unaccompanied adjusts it all but 1k..
following I begin the car, the engine surges in the works in the company of 1200 and 2000 rpm urge on and forth. I misrepresented the IAC and the TPS next no fine-tune in symptoms. I have noticed that several Lexus SC's have this similar issue. Prior to this I would have to adapt the idle rapidity screw to lower the rpm and it would support for a while. Now, the engine is forever surging to the narrowing where I cannot steer it for distress of broken to the drive train. Any experienced solution?