Check the hose clips for tightness and examine the trunking for any cracks or splits and with every 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 giving out and warm and then spray can lighter gas /propane or brake cleaner just about each joint in turn. If the engine rev s stirring you ve found your leak.
I'm 1500 too high.. or more. It's boggling to me how this trouble has morphed into various idle problems and has everyone perplexed.. or therefore it seems. I've been dealing gone this since July.. makes me appreciate my 240z 10 grow old more.My father owns an sc400 and its been really fine to him.. I'm having a hard period not inborn caustic subsequent to this purchase. I pull off tone like its a good car though. Motor sounds delectable and is super mild taking into consideration organization right.
considering I start the car, the engine surges taking place along with 1200 and 2000 rpm back up and forth. I untouched the IAC and the TPS afterward no correct in symptoms. I have noticed that several Lexus SC's have this similar issue. Prior to this I would have to adapt the idle enthusiasm screw to lower the rpm and it would support for a while. Now, the engine is constantly surging to the dwindling where I cannot drive it for warning of damage to the drive train. Any experienced solution?