3-42 ENGINE CONTROL SYSTEM
NOTE 1:
These conditions will be caused by IAC valve failure or incorrect
by-pass air screw adjustment. If IAC valve is always closed or
by-pass air is too low, the ECM controls the IAC valve duty to
increase to maintain the idling/trolling speed specified.
NOTE 2:
This condition will be caused by clogged pressure detect pas-
sage in collector assembly.
O-ring
Passage
MAP sensor
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