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Q: What are the 3 wires on the maf sensor which is positive and negative?
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Vw 2001 beetle 2.0 with accleration problems?

My family has a 2000 VW Beetle 2.0 Std Trans. It idles okay. But as you drive the vehicle starts to stall. But as you step off the gas pedal the engine starts back up. If you try to open the throttle the engine almost stalls. The engine has had new spark plug and head gaskets and new fuel pump and new fuel filter. Codes are 300 301 302 303 304. Timing belt was also replaced. Im thinking maybe the timing is off. O2 sensor reading 800 and then almost 20 then 10 when it starts to stall. Then back up to 800 after you let it idle. So the engine is leaning out and not letting the injectors work correctly. So you have any other Ideas that I can do or parts that need replacing. Oh yes MAF has been replaced too!!


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