Signal too high: 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 the connectors, reinstall components etc.
• Start the engine and let it run at idle speed
• Read off the mass air flow (MAF) sensor signal.

  The signal from the mass air flow (MAF) sensor must be approximately 1.35 V at idle speed with an engine at operating temperature not under any load.

  Fig 3: Identifying VCT2000

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Is the mass air flow (MAF) sensor signal OK? 

• YES 

  VERIFIED:  Troubleshooting has been completed.

• NO 

  Refer to Information