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GENERAL
MPI TROUBLESHOOTING PROCEDURES
PROBLEM
Engine will not start
Check electrical supply
L - -- -- --
--3'
_ _ _ _ _ _, - -
.cJ.
I
Wrong
OK
o Battery
1. Connection
2.
Specific gravity. charging system
3. Drive belt
4.
Voltage
o Fusible links
Z31CGOC
Check starting system
PROBLEM
Hard to start (Cranks OK)
Check self-diagnosis
I -
[Refer to page
31-39]
Normal codes
\
Check for vacuum leaks
OK
\
Check for ignition spark
-
o Unplug injector connectors
0
Check for a strong spark by
holding spark plug wire
8-10
mm
(0.030-0.039
in.) away from
engine
block
during
cranking
engine.
OK
To be continued
31-8
- - - - - - 3 '
Wrong
- - - - - - 7
Malfunction
codes
- - - - - 7 0
Wrong
----~
Wrong
o Ignition switch
o Starter relay
o Starter
o Wiring
Trouble codes
o Using voltmeter
[Refer to page
31-41)
o Using MUT
[Refer to page
31-44]
o Oil filler cap
o Oil dipstic
o Vacuum hose connections
o PCV hose
o EGR system
o High tension cables
o Distributor
o Ignition coil. power transistor
o Spark plugs
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