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forbes48

forbes48 11/6/2019

1996 Ford F-250 XL 8 Cyl 5.80L

Engine

pcm pulses iac all the time

iac is constantly pulsed with koeo. sometimes injectors are pulsed koeo, bad pcm?

1 Answer


Jimm

Jimm 11/7/2019

The PCM fine tunes air/fuel mixture during driving by adjusting fuel injector operation, NOT by using the idle air control valve.

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