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    03 6.0 Low circuits...

    Hello guys...long time lurker, first time poster...my truck is running rough and showing codes for injectors 4 & 6 low circuit. Truck is an 2003 f250 6.0, bone stock other than exhaust. I have replaced the injector harness with an aftermarket one, no help. Tried using a Different new FICM(I work...

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