lmorris Posted January 11, 2017 Share Posted January 11, 2017 Posted on the PTS message board: 2017 F450: Just giving a heads up, had a unit here 6000km's check engine light and went into reduced power mode. p1291 - Injector high side short to ground or batt (Bank 1). 2 wires rubbed through for #4 injector in the main harness on the edge of the EGR cooler about 6 inches down from pcm connector C1232e. The harness plastic retainer pulls the harness tight against the EGR cooler, causing it to chafe. Going to be other wiring issues caused by this. 1 Quote Link to comment Share on other sites More sharing options...
Matt Saunoras Posted January 12, 2017 Share Posted January 12, 2017 I remember the same thing happening on the early 11s with the gasket sticking up between the bypass and the cooler. If we don't learn from our mistakes.... Quote Link to comment Share on other sites More sharing options...
Larryforce Posted April 14, 2018 Share Posted April 14, 2018 Found the exact same thing yesterday. Thanks for the tip. Quote Link to comment Share on other sites More sharing options...
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