Mitsubishi 3000GT Service Manual page 207

CAMSHAFT POSITION SENSOR 4 992 models>
Crankshaft position
sensor (with built-in
Output characteristic
No.1
0
OPERATION
The camshaft position sensor senses the top dead center on compression stroke of the No.1, No.3
l
and No.5 cylinders, converts it into a pulse signal and inputs it to the engine control module, which
then controls the fuel injection sequence, etc. based on the input signal.
Power to the camshaft position sensor is supplied from the MFI relay and is grounded to the body.
l
The camshaft position sensor generates a pulse signal as it repeatedly connects and disconnects
between 5 V voltage supplied from the engine control module and ground.
TROUBLESHOOTING HINTS
Hint 1: If the camshaft position sensor does not function correctly, correct sequential injection is not
made so that the engine may stall, run irregularly at idle or fail to accelerate normally.
Hint 2: If the sensor outputs a pulse signal when the ignition switch is turned ON (with the engine not
running), a faulty camshaft position sensor or engine control module is suspected.
MULTIPORT On-Vehicle Inspection of MFI
FUEL INJECTION - Components
Equipment side
connector
No.4
Time
TSB Revision
MFI relay
Engine control module