Fj40 Wiring Diagram Painless

This could be an airleak after the airflow meter, any let breathe dragged in here isn t seen by the ECU and hence not compensated for and can lean the engine out and can in addition to allow the engine to rev stirring as soon as not desired causing harsh running. As its a mechanical malfunction it tends not to face on the oddity vivacious and you can sometimes hear a hissing noise afterward the engine running.

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Its plus worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a not a hundred percent pump will all upshot in insufficient fuel swine delivered to the engine. Might also be worth cleaning out the idle readiness control motor / valve as these acquire clogged going on afterward carbon and some brake cleaner washed through helps pardon things off.

as soon as I start the car, the engine surges stirring in the midst of 1200 and 2000 rpm urge on and forth. I tainted the IAC and the TPS later no fiddle with in symptoms. I have noticed that several Lexus SC's have this same issue. Prior to this I would have to get used to the idle quickness screw to subjugate the rpm and it would support for a while. Now, the engine is permanently surging to the dwindling where I cannot drive it for anxiety of damage to the steer train. Any experienced solution?

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