vw tdi needle lift sensor, how does this work, are the 2 wires simply pos and neg?
The needle lift sensor is inside the fuel injector. You can see its tiny wires coming out of that injector. The sensor wires are tiny and can break. You might be able to solder the wires
try reading this thread from TDI forum site
http://forums.tdiclub.com/showthread.php?t=288836
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