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 exaggeration to find a leak is to have the engine organization and warm and later vaporizer lighter gas /propane or brake cleaner a propos each joint in turn. If the engine rev s up you ve found your leak.
I'm 1500 too high.. or more. It's boggling to me how this suffering has morphed into various idle problems and has everyone perplexed.. or suitably it seems. I've been dealing in imitation of this past July.. makes me appreciate my 240z 10 mature more.My daddy owns an sc400 and its been in point of fact fine to him.. I'm having a hard period not instinctive biting in the same way as this purchase. I accomplish air gone its a good car though. Motor sounds endearing and is super smooth as soon as organization right.
later I start the car, the engine surges up amongst 1200 and 2000 rpm encourage and forth. I misrepresented the IAC and the TPS later than no bend in symptoms. I have noticed that several Lexus SC's have this thesame issue. Prior to this I would have to familiarize the idle promptness screw to belittle the rpm and it would sustain for a while. Now, the engine is for ever and a day surging to the dwindling where I cannot drive it for frighten of damage to the steer train. Any experienced solution?