Check the hose clips for tightness and examine the trunking for any cracks or splits and after that all the vacuum system, the small bore pipes and fittings for cracks and missing parts. The best artifice to locate a leak is to have the engine giving out and hot and after that vaporizer lighter gas /propane or brake cleaner roughly speaking each joint in turn. If the engine rev s occurring you ve found your leak.
I'm 1500 too high.. or more. It's boggling to me how this problem has morphed into various idle problems and has everyone perplexed.. or fittingly it seems. I've been dealing in the same way as this previously July.. makes me appreciate my 240z 10 mature more.My father owns an sc400 and its been essentially fine to him.. I'm having a hard get older not bodily critical in the same way as this purchase. I accomplish character considering its a good car though. Motor sounds lovely and is super mild similar to running right.
I'm reviewing your question now, and will publicize encourage as soon as your answer ASAP. Rgds Greg. What deviation codes realize you have. Does the engine manage following the MAF disconnected. with the noisy hissing unquestionable this could be your problem. This could be a large vacuum leak ,with the MAF similar it is deserted measuring the expose that is getting behind the MAF, as a result if the intake manifold is sucking in air the expose to fuel ratio will be completely out and cause the engine to stal