Troubleshooting - TOHATSU TLDI MD 115A SERIES Service Manual

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Troubleshooting

K
Symptom
3-2.
Fuel System
3.
3-3.
Engine can be
Air System
cranked and
starts, but idling
revolution
cannot be
maintained or is
unstable.
3-4.
Electrical
System
4.
4-1.
Idling speed is
Electrical
too high.
System
5-1.
5.
Engine revolution
5-2.
is unstable at
3000rpm or
5-3.
higher.
5-4.
6.
Engine will not
6-1.
fully increase
Power Head
speed with wide
open throttle.
9-8
Item
Fuel pressure is low.
Normal value range:
0.6 - 0.64MPa
(85.3 - 91.4psi)
2
[6 - 6.4kg/cm )
Fuel pressure is high.
Normal value range:
0.6 - 0.64MPa
(85.3 - 91.4psi)
2
[6 - 6.4kg/cm )
Air pressure is low.
[Normal value range:
0.53 - 0.57MPa
(75.4 - 81.1psi)]
2
[5.3 - 5.7kg/cm ]
Air pressure is high.
Spark Plug
Spark Plug Cap
Self-diag. reports component
abnormality.
Self-diag. reports component
abnormality.
Air Injector
Key switch
Self-diag. reports TPS idle
position incorrect.
Spark Plug
Engine speed is controlled.
(due to ESG)
Fuel or air pressure is low.
TPS(*1) function is faulty.
Advancer arm will not move.
Compression insufficient
Warning
indicator A
Self-
(Oil level)
diagnosable
Beep
( ○ )
○
Flashing
○
Flashing
○
Flashing
○
Flashing
○
Flashing
Warning Warning
lamp B lamp C
(Water temp.) (Battery volt.)
Flashing Flashing
Flashing Flashing
Flashing Flashing
Flashing Flashing
Flashing Flashing
TLDI 115A 2007