air bleeding RENAULT KANGOO 1997 KC / 1.G Engine And Peripherals Workshop Manual

Page
Cooling
Specifications
Filling and bleeding
Testing
Diagram
Water pump
Exhaust
General
Exhaust pipe assembly
Fuel tank
Tank
Sender unit
Pump and sender unit assembly
Engine suspension
Suspended engine mountings19-1
19-2
19-3
19-4
19-7
19-12
19-15
19-17
19-29
19-30
19-32 COOLING - EXHAUST - FUEL TANK -
ENGINE SUSPENSION
19
16-1
16-7 STARTING - CHARGING
Alternator
Starter
16
IGNITION - INJECTION
Ignition
Static ignition
Plugs
Injection
General
Location of components
Centralised coolant temperature
management
Injection fault warning light
Immobiliser function
Computer configuration depending
on gearbox type17
14-1
14-2
14-7
14-11 ANTIPOLLUTION
Test for the presence of lead
Fuel vapour rebreathing
Oil vapour rebreathing
Exhaust gas recirculation
(EGR)
14
17-17
17-18
17-19
17-20
17-22 IGNITION - INJECTION
(continued)
Injection/air conditioning
programming
Idle speed correction
Adaptive idle speed
correction
Richness regulation
Adaptive richness correction
17
Page
17-1
17-3
17-4
17-8
17-13
17-14
17-15
17-16
Contents

ANTIPOLLUTION
Fuel vapour rebreathing
14
CONDITION FOR BLEEDING THE CANISTER ( D7F
engine)
• Coolant temperature greater than+ 15 °C
•Air temperature greater than +10 °C.
• No load position not recognised (if there is a
fault in the throttle potentiometer sensor, the
condition of no load position not recognised is
replaced by an engine speed condition
R > 1500 rpm.).
It is possible to visualise the cyclical opening ratio
for the canister bleed solenoid using the
XR25
and #23. The solenoid is closed if #23 = 0.7 %
CONDITION FOR BLEEDING THE CANISTER (E7J
engine)
During richness regulation
Coolant temperature greater than 50°C.
Air temperature greater than 15°C.
No load position not recognised (if there is a fault
in the throttle potentiometer sensor, the
condition of no load position not recognised is
replaced by an engine speed condition
R > 1500 rpm.).
Outside richness regulation
•Coolant temperature greater than 50°C.
•Air temperature greater than 15°C.
•Full load position recognised (function of
engine speed and manifold pressure).
If there is a fault in the oxygen sensor, bleeding is
permitted outside of no load conditions.
It is possible to visualise the cyclical opening ratio
for the canister bleed solenoid using the
XR25
and #23. The solenoid is closed if #23 = 0.7 %
(minimum value).
14-4

ANTIPOLLUTION
Fuel vapour rebreathing
14
CHECKING CANISTER BLEED OPERATION
Incorrect operation of the system may cause the
idle speed to be unstable or the engine to stall.
Check the conformity of the circuit (see
operational diagrams)
Be sure to check that the pipe marked "CAN" on
the solenoid valve is correctly connected to the
canister.
Check the condition of the pipes to the fuel tank.
97393R6
1Inlet manifold
2Canister bleed solenoid valve
3Canister
4Fuel tankAt idle speed connect a pressure gauge
(- 3 ; +3 bars) (Mot. 1311-01) to the "CAN" outlet
on the solenoid valve, to check there is no vacuum
(the command value read by the
XR25 for #23 re-
mains minimal X = 0.7 % ). Is there a vacuum ?
YESIgnition off, use a vacuum pump to apply a
vacuum of 500 mbars to the solenoid valve
at (C). This should not vary by more than 10
mbars in 30 seconds.
Does the pressure vary?
YESThe solenoid valve is faulty. Renew it. Air
must be blown into the pipe (A) connecting
the solenoid valve to the canister to remove
any particles of active carbon.
NOThere is an electrical fault. Check the circuit.
NOUnder bleeding conditions (not at idle
speed, engine warm), the vacuum should
increase (the value for #23 on the XR25
should also be seen to increase).
14-5