Removing
Place the car on a two post lift.
Disconnect the wires from the battery terminals, starting with the negative terminal.
Note. An automatic shut-off valve isolates the circuit from the atmosphere during dismantling, so there is no need to drain the refrigerant circuit from the refrigeration circuit.
Remove the front bumper.
Pic. 8.159. Disconnecting the wiring harness from the fuel pressure sensor: 1 - fuel pressure sensor
Disconnect the wiring harness from the fuel pressure sensor (pic. 8.159).
Remove the pressure sensor.
A three-functional pressure sensor installed downstream of the condenser provides protection for the refrigeration circuit:
- the compressor supply circuit opens when the pressure drops to: 2 bar,
- the compressor power circuit opens when the pressure rises to: 27 bar.
The sensor sends the injection computer the value of the refrigerant pressure in the refrigerant circuit.
The injection computer controls the electric fans of the engine cooling system depending on the high pressure in the refrigeration circuit and the speed of the vehicle.
Pic. 8.160. Fuel pressure sensor
Installation
Installation is made in an order, the return to removal.
Check the condition of the sealing ring.
Tighten to specified torques:
- pressure meter (9 Nm);
- battery cover bolts (4 Nm).
Attention! Connect the battery and do the necessary programming.
Note. When replacing a valve, tighten the valve with a torque of 8 Nm using a wrench (Mot. 1608).
Check the operation of the air conditioning system with the electric fan running at maximum speed.
Search for leaks.