Hey guys , search wasnt working for code did see one , about the harness and possible bad regulator on my hpfp , trucks running pretty good now have most all air leaks figured out , and smoke in check ,all lb settings at 0 , running hd300 mild on my blackmaxx pulled a code p0091 at half throttle truck was running fine , i have the diesel dr dual fueller set up , running 30% nozzles ,any input or something i should check or is it tuning issue ? thanks guys
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