To remove
| IMPORTANT | Great cleanliness must be observed when working on the fuel rail and injectors. Clean the injectors, fuel-injection rail and intake manifold. Blow clean with compressed air. |
Scheme 11
Scheme 12
Scheme 13
Scheme 14
- Remove the upper engine cover.
- Remove fuse 19 with the engine running. Turn the ignition key to OFF when the engine has stopped.
- Undo the hoses for the crankcase ventilation.
- Take out the dipstick with oil filler pipe end and plug the pipe.
- Remove the cover and detach the throttle cable from the throttle spindle. Bend the throttle cable and holder to one side.
- Unplug the connectors for the injectors, ignition discharge module, absolute pressure sensor, mass air flow sensor and the turbo pressure sensor.
- Slacken the upper bolt of the wiring holder.
- Remove the lower screws.
- Lift up the wiring holder and bend it rearwards.
- Loosen the cable and bend them to one side. IMPORTANT: Secure each injector clip with a narrow cable tie. Make sure that it is fitted correctly before tightening. If not, the injectors could come loose from the fuel rail during the flow test.
- Undo the fuel lines with 83 95 261 Tools, Fuel line.
- Clean the area round the injectors with compressed air.
- Disconnect the pressure regulator's vacuum hose.
- Remove the fuel rail's 2 retaining bolts.
- Carefully pries loose the rail using 2 pry bars or the like.
- Carefully lift the rail up and away.
- Plug the nozzle orifices.
| IMPORTANT | To minimize any remaining fuel pressure, remove the fuel pump fuse no. 19 while the engine is running at idling speed. Turn off the ignition once the engine has stopped. |
Scheme 15
- Unplug the connectors from the oxygen sensor and crankshaft position sensor.
- Remove the vacuum hose.
- Remove the bolt and open the clamp.
- Gently work the pressure regulator loose and remove it.