13B-324
MR-372-J84-13B200$828.mif
V13
DIESEL INJECTION
Fault finding – Fault Finding Chart
EDC16
Program No.: C1
Vdiag no.: 18, 1C, 20,
50, 58, 5C
13B
ALP 5 Irregular engine operation
NOTESBefore dealing with this customer complaint, check that there are no faults, and
the conformity (or otherwise) of the parameters and statuses using the
diagnostic tool.
If the customer complaint is not eliminated, perform the following checks.
If the engine races during gear changes, check, if there is a floor carpet, that this is not blocking the accelerator
pedal, the brake pedal or the clutch pedal, then check the conformity of the clutch switch and the conformity of the
accelerator pedal sensor when the pedal is released. Measure the resistance of the engine speed sensor
between connections 3BG and 3BL of component 149:
Replace the sensor if its resistance is not 510 Ω < X < 850 Ω at 20°C.
Check the continuity of the following connections:
– connection code 3BG,
– connection code 3BL.
between components 120 and 149.
If the connection or connections are faulty and there is a repair method (see Technical Note 6015A, Repairing
electrical wiring, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
Check the conformity of the engine earths (oxidation, tightness, etc.).
Check the mounting, air gap (check that the engine speed sensor – flywheel gap is correct: 0.5 < X < 1.8 mm)
and the condition of the sensor (heating).
Replace if necessary.
Low pressure circuit check.
– Check the pressure regulating solenoid valve using part B of ALP7 Rough idle.
~ 1600 bar with full load on the accelerator.
– Apply the procedure used for checking the air flow (see “conformity check”).
– Check the turbocharger:
–Run Test 2 Air line at the turbocharger.
–Run Test 6 Turbocharger control solenoid valve check.
–Run Test 7 Turbocharger.
– Apply the procedure used for checking the hydraulic circuit (see conformity check).
If the fault is still present:
Check the balance of the cylinders using the CLIP Technic function, Compression test physical measurements
icon.
Check the engine compressions with the special tool, if necessary.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
EDC16_V50_ALP5/EDC16_V58_ALP5/EDC16_V5C_ALP5/EDC16_V18_ALP5/EDC16_V1C_ALP5/EDC16_V20_ALP5
