Dacia 1304 2004, Repair Manual

Page: 161 / 654

17
IGNITION AND INJECTION
17 - 25
PRELIMINARY CHECKING OPERATIONS
PRIOR THE DIAGNOSIS
The starting up electric circuit components should be under best conditions:
- Starter battery and cables;
- Fuel in accordance with the indications (without lead), sufficient quantity
(minimum
5 l
);
- Fuel filter according to the indications and correctly installed;
- Correct recirculation circuit (fuel vapors) with no clogging;
- Supplying circuit: good sealing between the components, air filter in order;
- Acceleration cable should not be tensioned;
- The stroke of the acceleration pedal should be set to permit the complete opening of the
valve;
- The vacuum circuit for servo brakes and its valves should be in order;
- The engine should be in good mechanical order: compression tappet-levers setting, dis-
tribution steps, etc;.
- The spark plugs should be according to the constructor specifications;
- The control cables for fuel injection should be firmly fixed on the mass points (gearbox
case, direction column) and on supplying points ( +12 V ) – at starter;
- The exhausting track should be sealed mainly between the evacuat ion gallery, down tube
and ë rod.
CONNECTING THE DIAGNOSIS TESTER
The diagnosis tester is connected to the vehicle injection cables, provided with the two ways
connector (AMP type, code 282189-1). This connector is placed on the left front mudguard
coating next to the relay and fuses block and fixed by a sealing clip. The
connector is provided with a protection gate valve. This protection is dismounted when connect-
ing the tester; the corresponding connector of the diagnosis tester is mounted in its place. The
tester is also connected to the
12 V
battery of the vehicle.
WARNING !
During the diagnosis the control lever of the gearbox should be on neutral and the
hand break should be pulled, to avoid the hazard risk.
The tester-connecting table should be not in contact with the hot components of the
vehicle (collectors, exhausting system, etc.) or the moving components (engine shaft
pulley, water pump pulley, and ventilation propeller).
When connecting the tester the contact key should be on “0”; at diagnosis the
contact key should be turned on “M” (contact ON).
DIAGNOSTIC
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