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INJECTION
CHECKS: LOW PRESSURE FUEL SUPPLY CIRCUIT
Engine: DT17BTED4
Checks on pressure: static.
Switch on the ignition.
For 3 seconds (normal functioning):
- Fuel supply pressure shown by the pressure gauge [3] = 1.1 ± 0.4 bar.
- Fuel return pressure shown by the pressure gauge [3] = 2 ± 0.5 bar.
Abnormal functioning:
Fuel supply Fuel return
Checks
pressure pressure
Between 2 and 3 bar 0.8 ± 0.4 bar Check the condition of the diesel fuel filter
More than 3 bar More than 0.8 bar Check the fuel return circuit (pipe pinched)
Between
Less than 0.8 bar
Check the fuel suppy circuit :
0.3 and 0.5 bar Booster pump (low pressure), piping
Impossible to start the engine:
- Fuel supply pressure less than 0.3 bar.
B1BP3CRD
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