Vauxhall Workshop Service and Repair Manuals

No.

TECH 1-Display

Conditions for Checking

Nominal Value

Trouble Codes

Terminal

07

MASS AIR FLOW S

Engine running at idle speed, operating temperature

Switch off all consumers

9 to 18 kg/h

0.6 to 1.0 V

73, 74

7, 30

Notes on Trouble - shooting:

Nominal Value:

Cause of Fault:

·   Ignition ON

·   Plug connection for mass airflow meter P 44 connected

·   Measure voltage at mass air flow meter P 44 Ter. 3 to Ter. 1 (using adapter cable)

11.5 to 13.5 V

·   Interruption or short circuit from

·   Plug connection for mass airflow meter P 44 connected

     -    main relay K 44 / Ter. 87 to mass air flow meter Ter. 3

     -    central ground to mass air flow meter Ter. 1

·   Engine running at idle speed

·   Measure voltage at mass air flow meter P 44 Ter. 4 to Ter. 2 (using adapter lead)

0.5 to 1.5 V

·   Interruption or short circuit from

     -    control unit K 61 / Ter. 7 to mass air flow meter Ter. 4

     -    control unit K 61 / Ter. 30 to mass air flow meter Ter. 2

·   Intake system leaky or blocked

·   Hot film mass air flow meter defective

·        Control unit defective