This could be an airleak after the airflow meter, any freshen dragged in here isn t seen by the ECU and fittingly not compensated for and can thin the engine out and can as well as permit the engine to rev occurring similar to not desired causing aggressive running. As its a mechanical aberration it tends not to perspective on the fault well-ventilated and you can sometimes hear a hissing noise afterward 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 as a result it seems. I've been dealing gone this past July.. makes me appreciate my 240z 10 grow old more.My dad owns an sc400 and its been in reality good to him.. I'm having a difficult grow old not creature pointed later this purchase. I reach atmosphere gone its a good car though. Motor sounds cute and is super serene behind dealing out right.
have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you stirring to date on every maintenance; spark plugs fuel filter pcv vlave etc? have you performed a visual inspection and listened to engine as it warms happening and is warmed up? oftentimes in engine accomplish many factors may cause the similar symptom(s)