Question about 1988 BMW M3

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My '83 320i is in neutral revs up fine, however when I put it in gear it feels like something is holding it back. it's not the clutch. The RPM's crawl up the tach. the engine gets louder but sounds muffled (if that makes any sense) The tach barely goes above 3500 RPM's. I've replaced the cap and rotor, the plugs, coil, and the fuel filter. I've been told it is the airflow sensor, but I don't know where that even is.

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The airflow sensor is the box like item on the airbox tubing b4 the airbox its self there should be a solid plastic tobe/pipe between 2 rubber 1s with a wiring plug attached this is the airflow meter/sensor

Posted on Oct 02, 2009

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