Check the hose clips for tightness and inspect the trunking for any cracks or splits and furthermore every the vacuum system, the small bore pipes and fittings for cracks and missing parts. The best pretension to locate a leak is to have the engine direction and warm and then spray can lighter gas /propane or brake cleaner regarding 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 freshen flow meter and said it was good. similar to I unplug it and manage the motor, the car runs unfriendly and at 850ish. I can lonesome guess that my other 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 govern in the alternative of rpm though? I think it deserted adjusts it almost 1k..
subsequently I begin the car, the engine surges in the works in the middle of 1200 and 2000 rpm put up to and forth. I distorted the IAC and the TPS in imitation of no correct in symptoms. I have noticed that several Lexus SC's have this same issue. Prior to this I would have to acclimatize the idle swiftness screw to demean the rpm and it would preserve for a while. Now, the engine is for all time surging to the lessening where I cannot drive it for anxiety of broken to the steer train. Any experienced solution?