Fault-Tracing Information

Fault tracing

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.

Hint: The engine cylinders are counted from the cylinder furthest away from the flywheel.
- Bank 1 (cylinder row nearest the front): cylinders 1, 3, 5 and 7.
- Bank 2 (cylinder row furthest to the rear, nearest the passenger compartment): cylinders 2, 4, 6, and 8.

Check the fuel level in the tank.
Check that the engine oil level is correct.
Check for moisture in the electrical terminals for the ignition coils and in the spark plug well.
Check the spark plugs. Search for damage to the insulation and other damage.
Check the engine intake system for air leakage.
Check the fuel pressure and residual pressure.
Check the compression of the engine.

Hint: Read off the misfire counter by clicking on the VCT2000 symbol.

Remedy as necessary.

Other information
- Air leaks in the intake system, checking, B8444S Check For Air Leaks In The Intake System
- Ignition coil, replacing, B8444S Service and Repair
- Fuel pressure gauge, engagement Fuel Pressure Gauge, Engagement
- Cylinder leakage test Component Tests and General Diagnostics





Continue - Verification

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Verification




Verification

Hint: After repairing, it is necessary to check that the malfunction has been fixed.








- Ignition off
- Reinstall the connectors, components etc.
- Start the engine.
Check that the misfiring counter does not count up and that the engine runs on all cylinders.

Note! Misfire can occur at different engine speeds and loads.





Is the function OK?

Yes - VERIFIED

No - VERIFICATION FAILED

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VERIFIED - FAULT FOUND

VERIFICATION FAILED - Fault-tracing information

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Fault-tracing information

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

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