Attention: Only turbocharged engines are equipped with this system.
General information
1. The engine overload protection system is designed to limit engine power in case of malfunction of the turbocharger pressure regulator. A pressure switch located on the intake manifold monitors the pressure and is activated when the pressure exceeds a set value. It interrupts the operation of the solenoid valve, which, in turn, cuts off the vacuum from the diaphragm located on the high pressure fuel pump. As a result, the fuel delivery by the pump is immediately reduced and becomes the same as without turbocharging.
2. The serviceable parts are only the pressure switch and the vacuum solenoid valve.
Pressure switch
Removing
3. The pressure switch is located on the wall of the intake manifold common chamber, next to the washer fluid reservoir.
4. Disconnect the switch wires from the connector.
5. Turn out the switch from a collector and remove a sealing lining.
Installation
6. Installation is made in the reverse order of removal.
Vacuum solenoid valve
Removing
7. The vacuum solenoid valve is located at the rear of the engine compartment on the left side behind the false panel bulkhead.
8. Disconnect the switch wires from the connector.
9. Disconnect the vacuum hoses from the vacuum valve fittings - note the position of each hose so as not to confuse them during installation.
10. Turn away screws of fastening and remove the electromagnetic valve.
Installation
11. Installation is made in the reverse order of removal. Make sure the vacuum hoses are connected correctly, otherwise serious engine damage may result.