Mash Side 400 Mode D'emploi page 51

2) Turn the ignition off, before connect or disconnect the connectors.
3) Make sure the temperature of the ECU is below 80℃.
4) The fuel pressure is much high ( about 250kPa), so please do not disassemble the
fuel pipe arbitrariliy. If have to, pleae release the pressure at first, and make sure the
operation is dilivered in the ventilated environment by the the professional mantenance
persons.
5) When disassmeble the fuel pump from the pump, make sure the power is off. Or it
may casue the fire.
6) The fuel pump cannot work in air or water, it will shorten the service life. And the
positive and negative connecters cannot be exchanged.
7) The ignition system check only could be delivered when it is nessasary. When
check the spark plug out of the engine, if start the engine, please make sure the throttle is
closed. Or too much unburned gasoline coming to the catalyst may damage the catalyst.
8) The idle speed is adjusted by the ECU. The idle pintle is not alowed to adjust.
9) The Positive and Negative of the battery cannot be reversed. It may damage the
EFI components.
10) It is forbidden to remove the battery when the eninge is running.
11) Cannot messure the signal by pierce the harness.
Maintenance depending on the malfcode.
Description
1) If the issure cannot repeat, the issure analysis may be wrong.
2) The multimeter below means the digital type. Pointer-type is forbidden.
3)
If the malfcode shows the voltage is low, it means maybe the wire is short to
ground. If the malfcode shows the voltage is high, it means maybe the wire is
short to battery. If the malfcode shows the components signal abnormal, it
means the wire is open or short to other wires.
Diagnostic help：
1) If the malfcode shows again after clearence, check whether the connector is
connected well.
2) Do not ignore the affect of the engine maintenance situation, the cylinder
pressure, and the mechanical ignition timing.
3) Change another ECU to do the test. If the malfcode disappears, the root cause
is the ECU. If the malfcode is still there, then use the old ECU to do the test.
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