5.14.3. Pressure decrease in a power supply system

PREVENTION Fuel is in a power supply system under the high pressure therefore it is forbidden to weaken connections of fuel-supply lines in operating time of the engine or right after its stop. For work on repair of a power supply system on just stopped engine it is necessary to reduce previously pressure in a power supply system. In 2–3 h after an engine stop pressure in a power supply system will reduce practically to zero.

1. Switch off ignition, open a cowl and establish it on an emphasis.

Fig. 10.2. Numbers of safety locks, fusible inserts and the relay in the assembly block located in podkapotny space of the Chevrolet Lanos car

Fig. 10.3. Numbers of safety locks, fusible inserts and the relay in the assembly block located in podkapotny space of the Daewoo Lanos car

2. Disconnect a wire from the minus plug of the rechargeable battery.

3. Uncover the assembly block of safety locks and the relay located in podkapotny space (see. "Arrangement of safety locks, fusible inserts and relay and their replacement").	4. Take from the assembly block of the relay No. 30 (see fig. 10.2) the fuel pump. On the Daewoo Lanos car take from the assembly block of the relay No. 31 (see fig. 10.3)

5. Connect a wire to the minus plug of the rechargeable battery, launch the engine and let's it work before full fuel use from a fuel stage. After that the engine will decay.

6. Switch off ignition. Now it is possible to separate fuel-supply lines.