Mitsubishi Eclipse. Manual - part 370
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-23
FAIL-SAFE FUNCTION REFERENCE TABLE
M1131153000288
When the main sensor malfunctions are detected by the diagnostic test mode, the vehicle is controlled by
means of the following defaults.
DIAGNOSTIC TROUBLE CODE CHART
M1131151000710
MALFUNCTION ITEM
CONTROL CONTENTS DURING MALFUNCTION
Volume airflow sensor
1. Uses the throttle position sensor signal and engine speed signal (crankshaft
position sensor signal) for basic injector drive time and basic ignition timing
from the pre-set mapping.
2. Fixes the IAC motor in the appointed position so idle air control is not
performed.
Intake air temperature
sensor
Controls as if the intake air temperature is 25
°C (77°F).
Throttle position sensor
No increase in fuel injection amount during acceleration due to the unreliable
throttle position sensor signal.
Engine coolant
temperature sensor
Controls as if the engine coolant temperature is 80
°C (176°F). (This control will
be continued until the ignition switch is turned to the "LOCK" (OFF) position even
though the sensor signal returns to normal.)
Camshaft position
sensor
Injects fuel simultaneously into all cylinders. (After the ignition switch is turned to
the "ON" position, the No.1 cylinder top dead center is not detected at all.)
Barometric pressure
sensor
Controls as if the barometric pressure is 101 kPa (30 in Hg).
Knock sensor
Switches the ignition timing from ignition timing for high octane to ignition timing
for standard octane fuel.
Communication line with
transaxle control CPU
No ignition timing retard control (overall engine-transaxle control) achieved when
transaxle speeds are changed.
Generator FR terminal
Does not restrict the generator output with respect to electrical load.
Heated oxygen sensor
<front>
Air/fuel ratio closed loop control is not performed.
Heated oxygen sensor
<rear>
Performs the closed loop control of the air/fuel ratio by using only the signal of
the heated oxygen sensor (front) installed on the front side of the catalytic
converter.
Misfire detection
The ECM <M/T> or PCM <A/T> stops supplying fuel to the cylinder with the
highest misfiring rate if a misfiring that could damage the catalytic converter is
detected.
DTC CODE
DIAGNOSTIC ITEMS
REFERENCE
PAGE
P0101*
Volume airflow circuit range/performance problem
P0102*
Volume airflow circuit low input
P0106
Manifold absolute pressure circuit range/performance problem
P0107
Manifold absolute pressure circuit low input
P0108
Manifold absolute pressure circuit high input
P0111*
Intake air temperature circuit range/performance problem
P0112*
Intake air temperature circuit low input
P0113*
Intake air temperature circuit high input