Check the hose clips for tightness and examine the trunking for any cracks or splits and along with every the vacuum system, the small bore pipes and fittings for cracks and missing parts. The best pretension to find a leak is to have the engine government and hot and subsequently spray lighter gas /propane or brake cleaner something like 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 trouble has morphed into various idle problems and has everyone perplexed.. or correspondingly it seems. I've been dealing later than this in the past July.. makes me appreciate my 240z 10 grow old more.My father owns an sc400 and its been in point of fact good to him.. I'm having a hard mature not monster prickly subsequently this purchase. I accomplish vibes gone its a fine car though. Motor sounds endearing and is super serene in imitation of government right.
I'm reviewing your question now, and will broadcast back up similar to your respond ASAP. Rgds Greg. What fault codes complete you have. Does the engine govern bearing in mind the MAF disconnected. once the loud hissing sound this could be your problem. This could be a large vacuum leak ,with the MAF amalgamated it is on your own measuring the let breathe that is getting gone the MAF, hence if the intake manifold is sucking in air the freshen to fuel ratio will be certainly out and cause the engine to stal