Mitsubishi 3000GT Service Manual page 246

HARNESS INSPECTION
3
Harness side
A B
On-Vehicle Inspection of MFI
FUEL INJECTION - Components
Measure the power supply volt-
age of the heated oxygen sensor.
Connector: Disconnected
l
Ignition switch: ON
l
Battery voltage
Check for an open-circuit, or a
short-circuit to ground, between
the engine control module and the
heated oxygen sensor.
Heated oxygen sensor con-
l
nector: Disconnected
Engine control module con-
l
nector: Disconnected
Check for continuity of the ground
circuit.
Connector: Disconnected
l
TSB
Revision
relay)
Repair the
harness.
Ground)