Signal too low: 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.
• Start the engine and let it idle.
• Read off the mass air flow (MAF) sensor signal.

  The mass air flow (MAF) sensor signal should be approximately 1.5-1.8V at idling speed.

  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