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Air Flow Mass Meter Ford Pinto Injection


DeanRudkin

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typical failure of an air flow meter is a worn track, and will cause a big stutter at certain air flows (rpm/throttle combinations).

 

The air flow flap moves a finger across a resistive track on the circuit board. If you take off the black plastic cover (which is stuck down well) undo the screws on the circuit board, and elongate the holes on the board, you can move it to one side, so that the finger runs across a section of the track that is not worn.

 

Andy

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That might well be the wiring to the air flow meter, check its earth (it has one of its own) and the rest of the wiring from ecu to it, using the haynes manual or the injection troubleshooter on nw.rhocar.org. Also check the pins in the air flow meter plug, they can become dislodged.

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