1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

code 31

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Mar 9, 2003 | 10:15 AM

#1

funfisher

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code 31

does anyone know what a code 31 means, its not in the haynes manuel

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Mar 9, 2003 | 10:24 AM

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mantta

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code 31

My book says code 31 is; PFE, EVP or EVR circuit below minimum voltage.

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Mar 9, 2003 | 11:45 AM

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funfisher

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code 31

this is on an 89 f-150, I cant find any of these in the book,can someone be more spacific as to what they are?

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Mar 9, 2003 | 11:52 AM

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mantta

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code 31

Ok, PFE= Pressure feedback (EGR)
EVP= EGR valve position
EVR=EGR vacuum regulator

Confused yet?

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