CITROEN C8 2005 - Vacuum Pump; Turbo Vacuum Regulation Electrovalve; Turbo Pressure Regulation Valve; Swirl Control Diaphragm

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INJECTION
CHECKING THE AIR SUPPLY CIRCUIT
Engine: 4HX
Vacuum pump.
Connect the tool [1] on the vacuum pump (3).
Start the engine.
The vacuum should be 0.8 bar at 750 rpm.
Turbo vacuum regulation electrovalve.
Connect the tool [1] between the electrovalve (2) and the valve (1).
Compare readings with the values in the table below.
Turbo pressure regulation valve.
Connect the tool [1] on the valve (1) (grey marking on pipe).
Appy a vacuum of 0.8 bar. The rod "a" should move 12 ± 2 mm.
Rod "a" should be moved 12 mm.
«Swirl» control electrovalve.
Connect the tool [1] as an adaptor between the electrovalve (4) and the control diaphragm of the «Swirl» (5).
Compare readings with the values in the table below.
«Swirl» control diaphragm.
Connect the tool [1] on the control diaphragm of the «Swirl» (5).
Apply a vacuum of approx. 0.6 bar; the pin (6) should be at the end stop, at «b».
Engine speed (rpm) Vacuum (bar)
780 0,6 bar
4000 0,25 bar
Engine speed (rpm) Vacuum (bar)
780 0 bar
4000 0,6 bar
C5
Angl.T3-page191-206-2005 4/02/05 15:05 Page 202