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Message: [QUOTE="rsmith0801, post: 1441967, member: 24510"] Can someone please explain why my truck (6.4) would go into limp mode (wrench symbol) when trying to engage high idle? I have connected the correct wires, yellow green (PTO) to one of my upfitter switches and I get he wrench everytime I flip the switch with E-brake set. I have even tried other Upfitter switches thinking maybe the amperage had something to do with it but I get the same result. I used the BCPSW input and it produced the same limp mode. I have the truck programmed and contacted the writer of the tune and nothing in the tune should cause the limp mode. I do have a Kenwood DDX9703S App radio that has the Maistro idata link that has 2 wires spliced into the OBD port for info (tire pressure, doors ajar, etc.). I also have the E-brake input grounded on the head unit to play DVD's while in motion. Would any of that have an affect on the High Idle not engaging? [/QUOTE]

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