•
.
- STRICTLY FOLLOW THE DESCRIBED PROCEDURE OR THE MALFUNCTION CAN NOT BE DE-
TECTED.
- IF THERE IS NO DIAGNOSTIC TESTER DS-21 AVAILABLE, SET THE IGNITION SWITCH TO OFF
AFTER CARRYING OUT STEPS FROM 2 TO 4, THEN REPEAT THESE STEPS.
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CARRY OUT THE CONFIRMATION TEST ACCORDING TO THE INSTRUCTIONS INDICATED IN
THE SECTION " USING THE OBD II GENERAL SCANNING DEVICE OR DIAGNOSTIC TESTER
DS-21 ".
Using the diagnostic tester DS-21 or OBD II general scanning device
If other diagnostic failure codes are detected besides P0172 or P0172 proceed with the relevant diag-
nostic failure code diagram.
2. Air intake system check
Check the following options:
•
Checking the engine oil level indicator, oil cap and PVC pipe, also inspecting that the latter
is not disconnected.
•
Checking there is no disconnection, loosening or cracking in the air intake system parts
between the cylinder head and the throttle body. Repair or replace the intake system, if
necessary.
3. Checking the injector injection.
Check for proper operation and replace the injector, if necessary.
4. Checking the vacuum switching valve for vapour bleeding.
Replace the vacuum switching valve for vapour bleeding, if necessary.
5. Checking the engine water temperature sensor operation.
Replace the engine coolant temperature sensor, if necessary.
6. MAP sensor check.
Replace the MAP sensor, if necessary.
7. Fuel pressure check.
Check and repair the fuel pump, the fuel pressure regulator, fuel duct and filter, if necessary.
Iniection System PORTER 1.3 16V
IS - 482
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