This is topic help with code 31 in forum Tech Talk at Northern California Ford Owners  .


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Posted by 1FastLX (Member # 1178) on :
 
well a week ago i noticed that my check engine light came on and off while i was driving the car , also i my cold start idle was a little rough.

well today i pulled the codes and it everything was all good, i got code 11 but in the continous memory part i got code 31 which:

31 (orc*): EVP (EGR Valve Position) or PFE (Pressure Feedback EGR) sensor voltage too low, or EVR (EGR Vacuum Regulator) circuit problems

this was on the Key On Engine Off test.

the Key On Engine running test was good , code 11


How can i fix that and what do i need to replace?

thanks guys

[ December 14, 2003, 05:53 PM: Message edited by: 1FastLX ]
 
Posted by white1990stang (Member # 2307) on :
 
i just replaced my evp. its lke 20 buxs. its the white thing on the back of the egr plate. it has an electrical plug going into it on the bottom
 
Posted by 1FastLX (Member # 1178) on :
 
did your Chech engine light flash while you drive?

is it hard to change?

thanks
 
Posted by graylx (Member # 3919) on :
 
my check engine light flashes on and off also. pretty annoying. also runs a little rough at idle.

have not pulled codes yet but wondering if you replaced evp. if so, did it eliminate the flashing check engine light?
 
Posted by graylx (Member # 3919) on :
 
my check engine light flashes on and off also. pretty annoying. also runs a little rough at idle.

have not pulled codes yet but wondering if you replaced evp. if so, did it eliminate the flashing check engine light?
 
Posted by st5150 (Member # 51) on :
 
You guys should take off your EGR valve and soak it good with carb cleaner. Clean it up good and re-install it. Clear the codes and see if it comes back. If it does, look into replacing the EGR valve. The EGR valve itself fails more often than the EVP sensor behind it. I find that the EGR valve needs to be cleaned every 15-20K miles on 5.O's.
 
Posted by 1FastLX (Member # 1178) on :
 
Gray LX

i replaced the evp and cleared the codes.
but you have to pull the codes for your to be sure its the same problem like mine

lates
 
Posted by graylx (Member # 3919) on :
 
Checked the codes...Code 31. I had already replaced EGR few thousand miles ago so I replaced EVP and the MIL no longer flashes...

Thanks for the help guys... [Smile]
 
Posted by graylx (Member # 3919) on :
 
Checked the codes...Code 31. I had already replaced EGR few thousand miles ago so I replaced EVP and the MIL no longer flashes...

Thanks for the help guys... [Smile]
 
Posted by onesicknochback (Member # 3899) on :
 
change your map sensor...tipo unlim
 




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