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P1261 Diagnostic Trouble Code Discussion for August 2011

Injector Positive Control Circuit Malfunction - Group 1

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Trouble Ticket Help Requests for DTC P1261
Help Request Posted
2005 Volkswagen Passat GL TDI 2.0L Misfire VIN: WVWAE63B25
P1261: 17669 pd unit injectorcylinder 1 regulation range exceded. This is pd tdi that is setting code p1261 17669 intermitently and is also misfiring intermitently. He does use his own home brew bio diesel. I have read a post saying that bio diesel can cause this but it didnt give anyway to test it or what the bio diesel doe...
August 31, 2011