Mitsubishi 3000GT Service Manual page 134

MULTIPORT FUEL INJECTION - Troubleshooting
nverts the oxygen density in the exhaust
odule checks an output voltage of the
the oxygen volume in the exhaust gas
Range of Check
Approx. 3 minutes or more have passed after engine was started.
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Engine coolant temperature is approx. 80% (176°F) or more.
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Closed throttle position switch : OFF
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The throttle position sensor output voltage is 4.1 V or more.
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20 seconds have passed after deceleration finished.
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Set Conditions
heated oxygen sensor (rear) output voltage is 0.1 V or
heated oxygen sensor (front) output voltage is 0.5 V or
ve conditions continue for a continuous period of 5
e control module inputs a torque reduction request
shift completes within the usually specified hours,
ntrol module checks whether the input hours of
Range of Check
60 seconds or more have passed immediately after engine was
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started.
Engine speed is approx. 50 r/min or more.
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Set Conditions
TSB Revision
Probable causes
Probable causes
e control module failed.