PO 231? - Ford Powerstroke Diesel Forum
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post #1 of 2 Old 07-07-2011, 08:17 PM Thread Starter
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Question PO 231?

i keep getting code P 0231 fuel pump secondary circuit low with my truck turned up on the 100 hp setting but not on the 60 hp setting. i never used to get it until the last week or so. where is a good starting point to trouble shoot it and is it common for the fuel pumps to go out? the truck has been idling a lil rough lately. the truck has 136,00 miles

Last edited by bullet450; 07-08-2011 at 06:25 AM.
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post #2 of 2 Old 05-29-2014, 07:44 PM
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Did you ever find the issue causing this code?
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