I'm not familiar with your engine/model, but If your MAF is a true MAF (hotwire), just tapping on it with the engine running should cause the engine to act up. Try disconnecting it and then starting the car; the ECM should block out that input and use the rest of the sensors to run the engine.

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A.S.E Tech A1,A6,A7,A8 & MVAC 609 + EPA 608

Unless stated otherwise, any question I ask is about my greymarket 1985 380SEL.