Fiat Bravo Service Manual page 141

Bravo-Brava @t
12v
Engine
Fuel system
10.
CHECKS, ADJUSTMENTS AND REPAIRS TO BOSCH MONOMOTRONIC SYSTEM
OBSERVE THE FOLLOWING PRECAUTIONS WHEN WORKING ON VEHICLES WITH
BOSCH MONOMOTRONIC INJECTION-IGNITION SYSTEMS:
- never start the engine when the electrical terminals are poorly connected or loose on the bat­
tery poles;
- never use a quick battery charger to start the engine;
- never disconnect the battery from the car circuit with the engine running;
- when charging the battery quickly, first disconnect the battery from the vehicle circuit;
- if the vehicle is placed in a drying oven after painting at a temperature of more than 80° C,
first remove the injection I ignition ECU;
- never connect or disconnect the ECU multiple connector with the ignition key in MARCIA
position;
- always disconnect battery negative lead before carrying out electrical welding on vehicle.
- Note that the memory of this system is active at all times (memory on stand-by), and con­
tains all learnt self-adaptive parameters. Because all this information would be lost if the bat­
tery were disconnected, this operation should only be carried out when absolutely essential.
CHECKING FUEL SUPPLY CIRCUIT
Testl
Check fuel regulation pressure as follows:
- Disconnect fuel delivery line to injector tur­
ret (from fuel filter) from inlet duct;
- Interpose pressure gauge 1895890000 be­
tween the disconnected pipe end and the
fuel manifold with cocks (A) and (B) open.
- Activate fuel pump with engine off.
The last operation is carried out by selecting "fuel pump" test on a Fiat/Lancia tester.
Under these conditions, the pressure gauge reading should stabilise at 1.1 ± 0.1 bars.
If pressure is insufficient, carry out the test 2.
Copyright Fiat Auto
39