Check the hose clips for tightness and examine 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 find a leak is to have the engine processing and hot and later spray lighter gas /propane or brake cleaner almost 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 trouble has morphed into various idle problems and has everyone perplexed.. or suitably it seems. I've been dealing past this previously July.. makes me appreciate my 240z 10 epoch more.My dad owns an sc400 and its been essentially fine to him.. I'm having a hard epoch not being bitter taking into account this purchase. I accomplish vibes with its a fine car though. Motor sounds endearing and is super smooth behind doling out right.
I'm reviewing your ask now, and will publicize support in imitation of your answer ASAP. Rgds Greg. What malformation codes attain you have. Does the engine control gone the MAF disconnected. as soon as the loud hissing unquestionable this could be your problem. This could be a large vacuum leak ,with the MAF connected it is lonely measuring the freshen that is getting past the MAF, thus if the intake manifold is sucking in air the let breathe to fuel ratio will be unquestionably out and cause the engine to stal