Faulty Signal. Permanent Fault

Faulty signal. Permanent fault

Checking the fuel injection system, ignition system and components
Check that the engine oil level is correct.
Check the ignition system for moisture in the spark plug wells. Check the ignition cables for open-circuits.
Check the spark plugs. Search for damage in the insulation and other damage. If there is any doubt about their function, replace the spark plugs.
Check the ignition coil connectors and the ground cable. Check for contact resistance and oxidation according to Checking wiring and terminals. Permanent fault Checking Wiring And Terminals. Permanent Fault.
Check the engine compression according to Checking the engine: Checking Compression.
Check the injectors according to Checking the injectors Testing and Inspection.
Check the fuel pressure and residual pressure according to Measuring fuel pressure EMS 2000 Measuring Fuel Pressure EMS 2000.
Check the intake system for air leakage according to intake system/leak test Intake System/Leak Test.

Select Continue.

Continue - Verification

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Verification




Verification

Verification

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




If the engine is running unevenly or is jerky, this may indicate misfiring.
- Reinstall the components, reconnect the connectors etc.
- Start the engine. Check immediately that there is no misfiring
- Let the engine idle. Check that there is no misfiring
- Rev the engine. Check that there is no misfiring as engine speed increases, at constant engine speeds and when returning to idle speed.

Hint: It may be difficult to detect misfiring in the workshop. Further checks can be made when carrying out the final checks after the diagnostic trouble codes (DTCs) have been erased.

Is the engine misfiring?

Yes - VERIFICATION FAILED

No - VERIFIED

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VERIFICATION FAILED - Fault-tracing information

VERIFIED - FAULT FOUND

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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 - FAULT-TRACING FAILED

No - Attempt New Test

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FAULT-TRACING FAILED - FAULT-TRACING FAILED

Attempt New Test - Checking the fuel injection system, ignition system and components

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