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Idle speed not raising on heat or headlights
#11
hot normal temps, and engine idle controls failed causes all. told in Physics way or , Otto Cycle ways.

1: ECU in limp-home mode (DTC errors set)
2: engine is weak (cam belt slipped tops list) or low engine compression. and lots more... lots of tests, to find bad engine ,
3: engine misfiring grossly. (lots of causes, but spark and fueling bad it is) even suck open EGR valve.(even bigger list of tests)
4: ISC valve jammed up (gunked up) seem to me it is not.
5: the engine can't breath nor pump air, really this is #2, in my book.

or even more simple.
1:bad engine,
2: ECU brain not happy. DTC #112 is happy, all others, not.


the whole purpose of limp home mode is.
NO DEAD ENGINE<! not being stranded can save a life. (ponder that)
you can drive to the repair shop and the man fixes. it. true then true now. 99% do. now.
http://www.fixkick.com
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RE: Idle speed not raising on heat or headlights - by fixkick - 03-31-2020, 01:48 AM

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