dvpart Posted December 23, 2010 Share Posted December 23, 2010 always trying to find the wright nubers but cant one person tells me one thing and then another cant get streight answer. Quote Link to comment https://www.bigmacktrucks.com/topic/16977-eups/ Share on other sites More sharing options...
rhasler Posted December 23, 2010 Share Posted December 23, 2010 The cal codes are four character alpha-numeric strings, something like 6G85, and will be located on the face of the EUP in the lower front corner of the tag, as viewed with the pumps installed in the engine. The serial number is the string of characters starting with "P" or "OBP" towards the center of the tag. The serial numbers may also need to be entered into the ECU. There will also be either 5227M, 5230M, or 5233M on the tags. These are the ends of the part numbers of the EUPs and don't need to be entered Quote "Mebbe I'm too ugly and stupid to give up!" Link to comment https://www.bigmacktrucks.com/topic/16977-eups/#findComment-69048 Share on other sites More sharing options...
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