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P1261 Diagnostic Trouble Code Discussion for February 2012

Injector Positive Control Circuit Malfunction - Group 1

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Trouble Ticket Help Requests for DTC P1261
Help Request Posted
2001 GMC Sierra 2500 HD SL 6.6L Excessive Emissions, Poor Idle Quality, Misfire VIN: 1GTHK23171
P1261: Injector Positive Control Circuit Malfunction - Group 1. Having problems with connecting scan tool to this vehicle and running function tests. I first used and OTC , when trying to perform cylinder kill test , kept kicking me out of the system - no comunication ect. Purchased a MDI from Bosch w/tech II on lap top - ...
February 09, 2012