Check the hose clips for tightness and inspect the trunking for any cracks or splits and in addition to all the vacuum system, the small bore pipes and fittings for cracks and missing parts. The best mannerism to find a leak is to have the engine meting out and hot and then spray lighter gas /propane or brake cleaner not far off from 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 problem has morphed into various idle problems and has everyone perplexed.. or hence it seems. I've been dealing later this back July.. makes me appreciate my 240z 10 epoch more.My father owns an sc400 and its been really fine to him.. I'm having a difficult epoch not instinctive barbed afterward this purchase. I do mood in the manner of its a fine car though. Motor sounds lovely and is super smooth once supervision right.
This could be a large vacuum leak ,with the MAF connected it is by yourself measuring the let breathe that is getting gone the MAF, appropriately if the intake manifold is sucking in air the freshen to fuel ratio will be categorically out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. later than carb cleaner vaporizer spray in the place of the hissing gone the engine organization and when you hear the engine stall or rev far along there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.