This could be an airleak after the airflow meter, any freshen dragged in here isn t seen by the ECU and in view of that not compensated for and can lean the engine out and can plus allow the engine to rev stirring taking into account not desired causing severe running. As its a mechanical malformation it tends not to slant upon the irregularity well-ventilated and you can sometimes listen a hissing noise gone the engine running.
I'm 1500 too high.. or more. It's boggling to me how this hardship has morphed into various idle problems and has everyone perplexed.. or consequently it seems. I've been dealing next this in the past July.. makes me appreciate my 240z 10 time more.My dad owns an sc400 and its been truly fine to him.. I'm having a hard period not creature critical later this purchase. I realize air behind its a fine car though. Motor sounds endearing and is super smooth considering running right.
similar to I start the car, the engine surges going on in the company of 1200 and 2000 rpm urge on and forth. I misused the IAC and the TPS with no correct in symptoms. I have noticed that several Lexus SC's have this thesame issue. Prior to this I would have to adjust the idle swiftness screw to humiliate the rpm and it would hold for a while. Now, the engine is at all times surging to the narrowing where I cannot steer it for warning of broken to the drive train. Any experienced solution?