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121
INJECTION
CHECKS : TURBO PRESSURE
Engine : 8HT
NOTE :
The engine has to be switched off.
Uncouple the tube at
"b"
using tool
[4].
Couple tool
[3]
on the tube at
"b".
Check the inlet manifold pressure sensor using the diagnostic tool.
Make the following selections in the diagnostic tool :
Menu :
"PARAMETER MEASURES"
"INJECTION INFO"
"TURBO PRESSURE"
Apply a pressure on the pressure sensor by means of too
l [3].
Check the pressure value in parameter measures by means of the diagnostic tool
.
Checks
IMPERATIVE : Respect the following test conditions:
- Engine at operating temperature, vehicle in running order, engine under full load.
NOTE :
Carry out the checks either during a road test or on a roller test bed.
Perform the checking with the aide of a diagnostic tool.
Start the engine.
Stage A :
Engage first gear, start the vehicle.
Engage the gears up to
third gear.
Decelerate to an engine speed of
1000 rpm.
Check the pressure :
0.6 ± 0.05 bar (1500 rpm).
Stage B :
Accelerate freely (change from fourth gear to third gear)
Check the pressure:
0.9 ± 0.05 bar
(between
2500
and
3500 rpm
).
B1B2008D
C5F2002D
FR-C1-page93-125-2005 9/01/06 8:51 Page 121