Checking the compression: Verification: Verification

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

Fig 1: Engine Start Verification

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Connectors

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition off
• Reconnect connectors, reinstall components
• Engine running
• Read off the misfire counters
• HINT: If a counter is not 0, the misfire is on that cylinder. 
  Fig 3: Identifying VCT2000

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Is any cylinder misfiring? 

• YES 

  VERIFICATION FAILED:  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.

• NO 

  VERIFIED:  Troubleshooting has been completed.