Mitsubishi 3000GT Service Manual page 229

KNOCKSENSOR
OPERATION
The knock sensor generates a voltage proportional to the magnitude of cylinder block vibration due to
knocking and inputs it to the engine control module. Based on this signal, the engine control module
provides retard control of the ignition timing.
TROUBLESHOOTING HINTS
When knocking occurs while driving under high-load conditions, the following problems are suspected
in addition to the knock sensor itself.
(1) Inappropriate ignition plug heat range
(2) Inappropriate gasoline
(3) Incorrectly adjusted reference ignition timing
MULTIPORT On-Vehicle Inspection of MFI
FUEL INJECTION - Comnonents
A Equipment
A Harness side
Engine control module connector
TSB
Revision
Engine control module
I
side connector
Knock sensor