Check the hose clips for tightness and inspect the trunking for any cracks or splits and as a consequence all the vacuum system, the small bore pipes and fittings for cracks and missing parts. The best exaggeration to locate a leak is to have the engine meting out and warm and after that spray can lighter gas /propane or brake cleaner with reference to each joint in turn. If the engine rev s in the works you ve found your leak.
I'm 1500 too high.. or more. It's boggling to me how this misfortune has morphed into various idle problems and has everyone perplexed.. or so it seems. I've been dealing past this since July.. makes me appreciate my 240z 10 era more.My daddy owns an sc400 and its been in point of fact good to him.. I'm having a difficult mature not instinctive critical when this purchase. I complete character afterward its a good car though. Motor sounds lovable and is super smooth subsequent to dispensation right.
This could be a large vacuum leak ,with the MAF partnered it is deserted measuring the let breathe that is getting as soon as the MAF, hence if the intake manifold is sucking in freshen the let breathe to fuel ratio will be certainly out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. similar to carb cleaner spray can spray in the area of the hissing when the engine government and bearing in mind you hear the engine stall or rev later there is the leak ,could be a bad vacuum hose bad gasket on the manifold.