display RENAULT TWINGO 2009 2.G Engine Diesel Injection Workshop Manual

13B-222V6 MR-413-X44-13B000$190.mif
DIESEL INJECTION
Fault finding – Tests13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
TEST 10
CONTINUED 3
Checking the vacuum at the solenoid valve inlet
Run the engine at idle speed.
Disconnect the vacuum pipe from the end piece of the solenoid valve inlet.
This pipe connects the vacuum pump to the turbocharger solenoid valve.
Connect a vacuum pressure gauge to the end of the disconnected pipe and put it in the vacuum measurement
position.
Read the vacuum posted by the pressure gauge.
Tolerance intervals for the vacuum are:
–1 bar < CORRECT vacuum value < -0.85 bar
–0.85 bar < INCORRECT vacuum value < 0 bar
Is the vacuum displayed by the pressure gauge at the solenoid valve inlet within the tolerance interval?
Carry out the following operations.
–reconnect the vacuum pipe to the turbocharger solenoid
valve.
–Check the conformity of the vacuum pipe connections.
–visually check the condition of the vacuum pipes leaving
the vacuum pump to the different supplied components.
Refer to the repair manual (see Mechanical MR of
the vehicle, 12B turbocharging).Replace the solenoid valve
(see Mechanical MR of the
corresponding vehicle 12B
turbocharging).
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