Mitsubishi Eclipse 1990, Service Manual

Page: 553 / 2103

ENGINE
AND ENGINE>
Troubleshootina
Code No. Injector Circuit
P r o b a b l e c a u s e
function (Cylinder-l,
[Comment]
l
Injector failed
Background
l
con-
l
A surge voltage is generated when the injectors are driven and the current flowing to
the injector coil is shut off.
l
Engine control module failed
l
The engine control module checks this surge voltage.
Check Area
l
Engine speed is between and 1000
l
Throttle position sensor output voltage is not higher than 1.16
l
Monitoring Time: 4
Judgement Criteria
l
Injector coil surge voltage (system voltage V) has not been detected for 4 sec.
Engine (Turbo)>
Check the injector. (Refer to Replace
NG
Check the resister. (Refer to
NG
Measure at the resistor connector
l
Disconnect the connector, and measure at the harness side.
Check harness wire between the relay and the
l
Voltage between 3 and ground. (Ignition switch: ON)
tor. Repair, if necessary.
OK: Battery positive voltage
OK
Measure at the injector connectors
l
Disconnect the connector, and measure at the harness side.
l
Voltage between 1 and ground. (Ignition switch: ON)
OK:
Battery positive voltage
OK
Check the injector control circuit.
(Refer to
INSPECTION PROCEDURE 49.)
Engine>
connector:
NG
Repair
OK
Check trouble I
NG
Check wire between the the injector connector.
Repair, if
Check the injector. (Refer to
N G
I
Replace
Measure at the injector connector.
l
Disconnect the connector, and measure at the harness side.
l
Voltage between 1 and ground (Ignition switch: ON)
OK:
Battery positive voltage
OK
PROCEDURE 49.)
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