3233202 - W01 HIGH CO EMISSIONS
The percentage of CO and/or HC is higher than the recommended figure.| Results of the tests | ||||
| 0 | PRELIMINARY CHECKS | All OK | Problems met | Operation |
|---|---|---|---|---|
| Check the condition of the air filter | Continue to Step 1 | Filter element dirty or damaged | Replace the filter element Op. 1048A14 | |
| 1 | CHECKING WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
| Connect the diagnostic equipment (Examiner or other instruments) to the diagnostic socketCheck that there are no faults in the engine management control unit | Continue to Step 2 | An error is detected in the control unit | Continue following the instructions for the diagnostic equipment | |
| Lack of dialogue with the control unit | Restore the connection between the engine management control unit and the diagnostic connector See E5030 PETROL ENGINE ELECTRONIC MANAGEMENT | |||
| 2 | ACTIVE DIAGNOSIS WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
Using the diagnostic equipment (Examiner or other instruments) carry out active diagnosis on the:
| Continue to Step 3 | Connections faulty | Restore the connection for the solenoid valve and the injectors with the control unit. See E5030 PETROL ENGINE ELECTRONIC MANAGEMENT | |
| Solenoid valve faulty | Replace the vapour recovery soleniod valve Op. 1080E24 | |||
| Injectors faulty | Replace injectors Op. 1056B70 | |||
| 3 | CHECKING LAMBDA SENSOR | All OK | Problems met | Operation |
| 1.6 TS | Check that the Lambda sensor is working properly See Test 1080BA Checking Lambda sensor | Continue to Step 4 | Lambda sensor not working properly | Replace the Lambda sensor Op. 1080B60 |
| 1.8 TS [d] 2.5 V6 | Check that the Lambda sensor is working properly See Test 1080BB Check operation of fuel vapour recovery solenoid valve | Continue to Step 4 | Lambda sensor not working properly | Replace the Lambda sensor Op. 1080B60 |
| 4 | CHECKING CATALYTIC CONVERTER | All OK | Problems met | Operation |
| Check that the catalytic converter is working properly | Continue to Step 5 | Catalytic converter not working properly | Replace the catalytic converter Op. 1080B62 | |
| 5 | CHECKING AIR CIRCUIT | All OK | Problems met | Operation |
| Check the condition and seal of the air supply circuit | Continue to Step 6 | Circuit component damaged | Replace component (See Assembly 1048A) | |
| 6 | CHECKING FUEL PRESSURE | All OK | Problems met | Operation |
| Check the fuel supply pressure Op. 0510C10 | Continue to Step 7 | Pressure not correct | Replace the fuel pump assembly Op. 1040A70 | |
| 7 | CHECK ON CORRECT OPERATION | All OK | Problems met | Operation |
| Check that the fault is no longer present | End of diagnosis | Fault persists | Search for the fault starting from another symptom' | |
| Results of the tests | ||||
| 0 | PRELIMINARY CHECKS | All OK | Problems met | Operation |
|---|---|---|---|---|
| Check the condition of the air filter | Continue to Step 1 | Filter element dirty or damaged | Replace the filter element Op. 1048A14 | |
| 1 | CHECKING WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
| Connect diagnostic equipment (Examiner or other instruments) to the diagnostic socket.Check that there are no faults in the engine management control unit | Continue to Step 2 | 'Fuel system' error appears | See table Z50 MIXTURE STRENGTH ERROR | |
| 'Misfiring' error appears | See table Z53 MISFIRE ERROR | |||
| 'Catalytic converter' error detected | See table Z55 CATALYZER ERROR | |||
| 'Upstream lambda sensor' error detected | See table Z56 UPSTREAM LAMBDA SENSOR SIGNAL ERROR | |||
| 'Downstream lambda sensor' error detected | See table Z58 DOWNSTREAM LAMBDA SENSOR SIGNAL ERROR | |||
| Another error dected in the control unit | Continue following the instructions for the diagnostic equipment | |||
| Lack of dialogue with the control unit | Restore the connection between the engine management control unit and the diagnostic connector See E5030 PETROL ENGINE ELECTRONIC MANAGEMENT | |||
| 2 | ACTIVE DIAGNOSIS WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
Using the diagnostic equipment (Examiner or other instruments) carry out active diagnosis on the:
| Continue to Step 3 | Connections faulty | Restore the connection of the injectors and the solenoid with the control unit See E5030 PETROL ENGINE ELECTRONIC MANAGEMENT | |
| Solenoid valve faulty | Replace the solenoid valve Op. 1080E24 | |||
| Faulty injector | Replace injector Op. 1056B70 | |||
| 3 | CHECKING LAMBDA SENSOR | All OK | Problems met | Operation |
| Check that the Lambda sensor is working properly See Test 1080BA Checking Lambda sensor | Continue to Step 4 | Lambda sensor defective | Replace the Lambda sensor | |
| 4 | CHECKING CATALYTIC CONVERTER | All OK | Problems met | Operation |
| Check that the catalytic converter is working properly | Continue to Step 5 | Catalytic converter defective | Replace the exhaust manifold | |
| 5 | CHECKING AIR CIRCUIT | All OK | Problems met | Operation |
| Check the condition of the air supply circuit | Continue to Step 6 | Circuit component damaged | Replace the component involved | |
| 6 | CHECKING FUEL PRESSURE | All OK | Problems met | Operation |
| Check the fuel supply pressure | Continue to Step 7 | Pressure not correct | Replace the fuel pump Op. 1040A70 | |
| 7 | CHECK ON CORRECT OPERATION | All OK | Problems met | Operation |
| Check that the fault is no longer present | End of diagnosis | Fault persists | Search for the fault starting from another symptom' | |