Computerguy Posted August 22, 2017 Share Posted August 22, 2017 I have a 2008 CH613 with MP8 I am getting an intermittent skipping. Hooked up to Tech tool and got MID128 SID 1,2,3, FMI 5 on all 3 (Injectors 1-3 Low voltage) what would give it low voltage? These were all replaced less than 3k miles ago and trim codes programmed at the dealer ( if anyone has a way to get around the dealer doing that please let me know) If anyone can tell me what to check for low voltage that would be great. I think it would be easier if it was No voltage. Quote Link to comment https://www.bigmacktrucks.com/topic/50842-injector-low-voltage/ Share on other sites More sharing options...
Mackpro Posted August 22, 2017 Share Posted August 22, 2017 Being a 2008 and if the engine wiring harness is original, replace the engine harness. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/50842-injector-low-voltage/#findComment-378116 Share on other sites More sharing options...
Mackpro Posted August 22, 2017 Share Posted August 22, 2017 However is your harness is not flaking apart like most then you can replace the ends Harness injector terminals.pdf 1 Quote Link to comment https://www.bigmacktrucks.com/topic/50842-injector-low-voltage/#findComment-378119 Share on other sites More sharing options...
Computerguy Posted September 27, 2017 Author Share Posted September 27, 2017 Replaced harness and that took care of it. Thank you. Quote Link to comment https://www.bigmacktrucks.com/topic/50842-injector-low-voltage/#findComment-380848 Share on other sites More sharing options...
Bryce Posted July 27, 2020 Share Posted July 27, 2020 Just replaced engine harness on the mp8 and now im getting low voltage to injector 5 and high voltage to number 6 any ideas? Quote Link to comment https://www.bigmacktrucks.com/topic/50842-injector-low-voltage/#findComment-456813 Share on other sites More sharing options...
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