about 80°. The jet thus formed impinges both in-
take valves.
N.B.
- AN INJECTOR WITH LOW FLOW RATE AFFECTS THE
MAXIMUM PERFORMANCE.
- AN INJECTOR WITH POOR SEAL AFFECTS IDLING AND
THE START-UP FEATURES AFTER A SHORT STOP WITH
HOT ENGINE.
- IN CASE OF CLOGGING OF THE INJECTOR, IT IS NEC-
ESSARY TO REPLACE IT, ALONG WITH THE FUEL FILTER
CONTAINED IN THE TANK. CAREFULLY CLEAN THE SYS-
TEM AND THE TANK.
Troubleshooting
1 - A failure of the EMS system is more likely to be due to the connections than to the components.
Before searching the EMS system for failures, perform the following checks:
SUGGESTION FOR TROUBLESHOOTING
Specification Desc./Quantity
1 1. Power supply - Battery voltage
- Burnt fuse
- Remote control switches
- Connectors
2 2. Chassis earth
3 3. Fuel supply - Faulty fuel pump
- Dirty fuel filter
4 4. Ignition system - Faulty spark plug
- Faulty coil
- Faulty screened cap
5 5. Intake circuit - Dirty air filter
- Dirty by-pass circuit
- Faulty stepper motor
6 6. Other - Wrong distribution timing
- Wrong idle speed carburetion
- Wrong reset of the throttle valve position sensor
2 - Failures to the EMS system may depend on loosened connectors. Make sure that all connections
are properly implemented.
Check the connectors being careful of the following: 1. check that terminals are not bent. check that
connectors are properly engaged.
Check whether the failure changes if the connector is slightly vibrating.
3 - Before replacing the EMS control unit, check the whole system carefully.
If the fault is fixed by replacing the EMS control unit, install the original control unit again and check
whether the fault occurs again.
4 - For troubleshooting, use a multimeter with an internal resistance of more than 10KΩ/V.
Improper instruments may damage the EMS control unit.
The instruments to be preferred have a definition of more than 0.1V and 0.5Ω and an accuracy of more
than ± 2%.
Injection X8 400 Euro 3
INJEC - 238
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