Check the hose clips for tightness and inspect the trunking for any cracks or splits and next every the vacuum system, the little bore pipes and fittings for cracks and missing parts. The best exaggeration to locate a leak is to have the engine giving out and hot and subsequently spray can lighter gas /propane or brake cleaner approaching each joint in turn. If the engine rev s taking place you ve found your leak.
I'm 1500 too high.. or more. It's boggling to me how this burden has morphed into various idle problems and has everyone perplexed.. or for that reason it seems. I've been dealing when this before July.. makes me appreciate my 240z 10 times more.My dad owns an sc400 and its been really fine to him.. I'm having a difficult period not living thing caustic gone this purchase. I pull off atmosphere in the manner of its a good car though. Motor sounds delightful and is super mild subsequently admin right.
subsequently I start the car, the engine surges happening with 1200 and 2000 rpm support and forth. I misrepresented the IAC and the TPS similar to no bend in symptoms. I have noticed that several Lexus SC's have this thesame issue. Prior to this I would have to accustom yourself the idle eagerness screw to lower the rpm and it would withhold for a while. Now, the engine is forever surging to the dwindling where I cannot steer it for panic of damage to the drive train. Any experienced solution?