Emissions Impact / Catalytic Converter Damage

Emissions impact / catalytic converter damage

Checking the fuel injection system, ignition system and components

Note! In the event of diagnostic trouble codes (DTCs), that affect camshaft control or camshaft reset valve, these must be fault-traced first.

The diagnostic trouble code (DTC) indicates which cylinder has misfired:





Check that the engine oil level is correct.
Check the spark plugs. Search for damage in the insulation and other damage.
Check the ignition spark.
Check the function of the crankcase ventilation.
Check the fuel pressure and residual pressure. Checking fuel and residual pressures Checking Fuel and Residual Pressures
Check if there is any air leakage. Air leakage in the intake system, checking, B5254T2 Air Leaks in the Intake System, Checking
Check that the engine seals tight. Compression test Compression Test
Check the flywheel for damage.

Other information:
- for information about the misfire diagnostic, see Misfire diagnostic Misfire Diagnostic.





Continue - Verification

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Verification




Verification

Hint: After carrying out the repair, check that the fault has been remedied.








- Ignition off.
- Reinstall connectors, components etc.
- Start the engine.
Check that the misfire counter counts upwards and that the engine is firing on all cylinders. Also check that the misfire diagnostic system is active. If not, check the conditions.





Does the misfiring counter count upwards?

Yes - Fault-tracing information

No - Verification complete

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Fault-tracing information




Information

Fault-tracing information
The fault should have been detected and remedied. As this is not the case fault-tracing has failed.
Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

Do you want to exit fault-tracing?

Yes - Exit Fault-Tracing

No - Attempt New Test

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Attempt New Test - ignition system and components

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