Check the hose clips for tightness and inspect the trunking for any cracks or splits and in addition to every the vacuum system, the little bore pipes and fittings for cracks and missing parts. The best exaggeration to locate a leak is to have the engine management and hot and then vaporizer lighter gas /propane or brake cleaner as regards 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 misfortune has morphed into various idle problems and has everyone perplexed.. or appropriately it seems. I've been dealing later than this back July.. makes me appreciate my 240z 10 mature more.My daddy owns an sc400 and its been in point of fact good to him.. I'm having a hard epoch not being sour subsequently this purchase. I complete quality as soon as its a fine car though. Motor sounds endearing and is super smooth considering handing out right.
This could be a large vacuum leak ,with the MAF associated it is on your own measuring the expose that is getting afterward the MAF, so if the intake manifold is sucking in ventilate the expose to fuel ratio will be unconditionally out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. with carb cleaner spray can spray in the area of the hissing bearing in mind the engine doling out and following you listen the engine stall or rev later there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.