Mitsubishi MOTORS Space Runner 1999 Workshop Manual Supplement page 505

13B-24
INSPECTION PROCEDURE 5
No initial combustion (starting impossible)
In cases such as the above, the cause is probably that a spark plug is defective,
or that the supply of fuel to the combustion chamber is defective.
In addition, foreign materials (water, kerosene, etc.) may be mixed with the fuel.
Check battery voltage when cranking.
OK: 8 V or higher
Is an immobilizer-ECU diagnosis code displayed?
MUT-II Data list
16 Voltage of engine-ECU power source (Refer to P.13B-49.)
Does the camshaft rotate at the engine cranking? (When oil filler
cap is removed.)
MUT-II Self-Diag code
Are diagnosis codes displayed?
MUT-II Data list
22 Crank angle sensor
OK: Cranking speed is displayed.
MUT-II Actuator test
07 Fuel pump (Refer to P.13B-52)
MUT-II Data list
21 Engine coolant temperature sensor (Refer to P.13B-49.)
Can any sound be heard from the injectors when cranking?
Does the engine tachometer display the cranking speed?
Set the tachometer of primary voltage detection type.
Check the ignition timing when cranking.
OK: Approx. 5_ BTDC
Check the following items.
Check the ignition coil, spark plugs, spark plug cables. (Refer to GROUP 16 – On-vehicle service.)
Check if the injectors are clogged.
Check if foreign materials (water, alcohol, etc.) got into fuel.
Check the compression pressure.
Check the immobilizer system. (Refer to GROUP 54 – Ignition Key and Immobilizer.)
MPI –
OK
No
OK
Yes
No
OK
OK
OK
OK
OK
OK
Troubleshooting
Probable cause
Malfunction of the ignition system
Malfunction of the fuel pump system
Malfunction of the injectors
Malfunction of the engine-ECU
Malfunction of the immobilizer system
Foreign materials in fuel
NG
Check the battery. (Refer to GROUP 54 – Battery.)
Yes
Check the immobilizer.
(Refer to GROUP 54 – Ignition Key and Immobilizer.)
NG
Check the power supply and ignition switch-IG system. (Refer
to P.13B-41, INSPECTION PROCEDURE 25.)
No
Check timing belt for breakage.
Yes
Refer to P.13B-9, INSPECTION CHART FOR DIAGNOSIS
CODES.
No
Check the crank angle sensor system. (Refer to P.13B-14, IN-
SPECTION PROCEDURE FOR DIAGNOSIS CODE 22.)
NG
Check the fuel pump system. (Refer to P.13B-42, INSPECTION
PROCEDURE 26.)
NG
Check the engine coolant temperature sensor system. (Refer to
P.13B-13, INSPECTION PROCEDURE FOR DIAGNOSIS CODE
21.)
NG
Check the injector system. (Refer to P.13B-17, INSPECTION PRO-
CEDURE FOR DIAGNOSIS CODE 41.)
NG
Check the ignition circuit system. (Refer to P.13B-45, INSPECTION
PROCEDURE 31.)
NG
Check that the distributor is installed properly.