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Wiring diagrams Section: DOHC Petrol Engine

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Air Mass Meter, Simtec 56.5 Opel Omega B

DOHC Petrol Engine 1 illustration

Objective:

Operational check.

Measurement:

Plot of voltage at the signal output of the air mass meter.

Preparation:

Switch off the engine and ignition.

Connections:

INPUT A	COM/TRIGGER	INPUT B
Connect red measurement lead to pin 2 of the plug connector on the air mass meter. Connect the black ground lead to ground.

Procedure Tech 31:

1. Download Reference curve.
2. Start engine and allow it to idle.
3. Press the accelerator pedal once quickly down to the limit stop and immediately release it again. The measurement should not take longer than one second.

Reference Curve:

Air Mass Meter, Simtec 56.5

If the measured signal plot does not approximately correspond with the reference curve after repeated testing, check the air mass meter system as described in the checking procedure.