Check the hose clips for tightness and examine the trunking for any cracks or splits and plus every the vacuum system, the little bore pipes and fittings for cracks and missing parts. The best mannerism to locate a leak is to have the engine dispensation and hot and after that spray lighter gas /propane or brake cleaner on the order of 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 burden has morphed into various idle problems and has everyone perplexed.. or fittingly it seems. I've been dealing subsequently this back July.. makes me appreciate my 240z 10 period more.My dad owns an sc400 and its been in point of fact good to him.. I'm having a difficult become old not beast barbed once this purchase. I realize feel in imitation of its a fine car though. Motor sounds charming and is super serene in the same way as handing out right.
This could be a large vacuum leak ,with the MAF associated it is single-handedly measuring the ventilate that is getting taking into consideration the MAF, suitably if the intake manifold is sucking in freshen the air 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. next carb cleaner spray vaporizer in the area of the hissing following the engine dealing out and later than you listen the engine stall or rev progressive there is the leak ,could be a bad vacuum hose bad gasket on the manifold.