TOHATSU MD 70-90C2 Service Manual page 282

O
Troubleshooting
K
Symptom
.
-4.
Engine can be
Electrical
cranked but will
not start.
System
3-1.
Power Head
3.
Engine can be
cranked and
starts, but idling
cannot be
maintained or is
unstable.
3- .
Fuel System
TPS(*3) : Throttle Position Sensor
Lift Pump (*4) : Diaphragm type fuel pump
Reset TPS when (*5): The set of remote control cables were readjusted because TPS error message was displayed due to
①
incorrect setting of the cables.
TPS or ECU was replaced.
②
Link or rod snap was replaced due to wear or deformation of links.
③
It is necessary to reset ECU and TPS after performing the above work. Reset TPS initial value by referring to
the chapter of self-diagnosis function.
9-6
Item
Spark Plug Cap
Crank Position Sensor
ECU
Self-diag. reports that battery
voltage is abnormally low.
Self-diag. reports that a component
is abnormal.
Self-diag. reports that TPS (*3)
idle position is faulty.
Engine revolution is slow (seizure).
Compression insufficient
Fuel Tank
Fuel Tank
Fuel pressure is low.
Normal value range:
0.67 - 0.78MPa
(97.17 - 113.13psi)
[6.7 - 7.8kg/cm ]
Warning
indicator A
Self-
(Oil level)
diagnosable
eep
( )
○
○
○
○
○
Warning Warning
lamp lamp C
(Water temp.) ( attery volt.)
Flashing
TLDI 75/90C2 2010