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Re: 2000 new beetle starting
Try changing the engine temp sensor. The sensor will be telling the ECU that the engine is hot when actually its cold. therefore the fuel mixture will be weak.I this doesnt cure it, i would be looking at fuel starvation. Faulty of cracked fuel pump or just maybe run out of fuel.
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I had that problem for the longest time. I had to clean the Mass Air Flow Sensor. Very easy to get to. Go to any auto parts store and ask them for the MAFS Spray. If cleaning it doesn't work, you may need to replace the MAFS. Once again easy to replace. Make sure you put it back nice and tight.....
When was the last time you had your fuel filter replaced ?? Sounds like the engine may be starved for gas because of a clogged fuel filter. If you have no record of having been replaced, this may be the least expensive place to begin, but be careful the quick disconnects on the fuel filter can be difficult to push in. Also, the fuel lines will be pressurized when they are disconnected, and could spray gas into your face if your not careful. If you damage the disconnects on the fuel lines you will need to have the lines replaced, so be gentle.
run a scan tool on it and make sure there are no codes, if there is codes address those problems first, if no codes.. next time it won't start check for fuel preasure. it is probably a fuel pump getting ready to go out or they may be a large amount of something other than gas clogging the pick-up sock at bottom of fuel pump.