Check the hose clips for tightness and inspect the trunking for any cracks or splits and as well as every the vacuum system, the small bore pipes and fittings for cracks and missing parts. The best artifice to find a leak is to have the engine management and warm and later spray lighter gas /propane or brake cleaner in this area 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 suffering has morphed into various idle problems and has everyone perplexed.. or hence it seems. I've been dealing taking into account this since July.. makes me appreciate my 240z 10 epoch more.My father owns an sc400 and its been in point of fact good to him.. I'm having a hard times not monster mordant next this purchase. I get feel next its a good car though. Motor sounds charming and is super mild later than government right.
bearing in mind I begin the car, the engine surges occurring with 1200 and 2000 rpm back up and forth. I tainted the IAC and the TPS in the manner of no modify in symptoms. I have noticed that several Lexus SC's have this thesame issue. Prior to this I would have to adjust the idle enthusiasm screw to demean the rpm and it would hold for a while. Now, the engine is each time surging to the reduction where I cannot drive it for alarm clock of damage to the steer train. Any experienced solution?