Permanent Fault
Permanent fault
Checking for air leakage in the intake system
Check for air leakage according to Check for air leaks in the intake system Air Leaks in the Intake System, Checking.
Remedy as necessary.
Was there any air leakage?
Yes - Verification
No - Checking for air leakage in the exhaust system
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Checking for air leakage in the exhaust system
Check for air leakage according to Checking for air leakage in the exhaust system Air Leakage Exhaust System, Check.
Remedy as necessary.
Was there any air leakage?
Yes - Verification
No - Checking fuel and residual pressures
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Checking fuel and residual pressures
Check fuel and residual pressure.
Remedy as necessary.
Was the pressure OK?
Yes - Verification
No - Checking compression
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Checking compression
Carry out a compression test.
Remedy as necessary.
Was compression OK?
Yes - Replacing component
No - Verification
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Replacing component
- Try a new three-way catalytic converter (TWC). Replace according to Three-way catalytic converter (TWC), replacing Service and Repair.
Select "Continue" when the fault has been remedied.
Continue - Verification
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Verification
Verification
Hint: After carrying out the repair, check that the fault has been remedied as follows:
- Ignition off.
- Replace connector, components etc.
- Test drive car according to Verifying repairs Verifying Repairs.
Note! After test driving the engine should not be turned off. Information in the control module is erased.
- Connect VCT 2000 to the data link connector (DLC).
- Read off the status of the diagnostic trouble code (DTC). The text NOT READY is displayed if the diagnosis is still on-going. This indicates that the test drive was too short.
Is FAULT NOT REGISTERED displayed?
Yes - Verification completed
No - Fault-tracing information
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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 - Checking for air leakage in the intake system
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