298
INJECTION
CHECKING THE AIR SUPPLY CIRCUIT
Tool.
[1] Manual pressure-vacuum pump : FACOM DA 16
Checks.
Vacuum pump.
Connect the tool [1] into the vacuum pump (1).
Start the engine.
Wait 30 seconds.
The vacuum value should be 0.9 ± 0.1 bar at idle.
NOTE: The exhaust gas recycling valve is not linked to the air supply circuit.
The exhaust gas recycling electrovalve is controlled by the engine ECU.
Turbocharging pressure regulation valve.
Connect the tool [1] on the valve (2)
(tube identified by the colour grey)
.
Apply a vacuum of approx. 0.8 bar.
Rod "a" should move 12 ± 2 mm.
B1HP1UGC
B1HP1UHC
Engines: 9HY - 9HZ
C4
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