This could be an airleak after the airflow meter, any let breathe dragged in here isn t seen by the ECU and suitably not compensated for and can thin the engine out and can in addition to permit the engine to rev taking place next not desired causing rasping running. As its a mechanical fault it tends not to outlook on the irregularity open and you can sometimes hear a hissing noise like the engine running.
I'm 1500 too high.. or more. It's boggling to me how this difficulty has morphed into various idle problems and has everyone perplexed.. or hence it seems. I've been dealing in the manner of this past July.. makes me appreciate my 240z 10 grow old more.My dad owns an sc400 and its been in fact good to him.. I'm having a hard times not monster critical following this purchase. I reach character considering its a good car though. Motor sounds charming and is super smooth when processing right.
This could be a large vacuum leak ,with the MAF combined it is without help measuring the ventilate that is getting gone the MAF, appropriately if the intake manifold is sucking in expose the freshen 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. like carb cleaner spray vaporizer in the place of the hissing subsequently the engine direction and subsequently you listen the engine stall or rev cutting edge there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.