KevinB, TI Automotive does not endorse modifying the OPR function, it is a safety feature, so I have to leave this one alone. Although, you don't need to look very hard to find out how to do it :smile:
Are Walbro pumps now trouble free?
- Thread starter ANDYS87
- Start date
KevinB, TI Automotive does not endorse modifying the OPR function, it is a safety feature, so I have to leave this one alone. Although, you don't need to look very hard to find out how to do it :smile:
BuckeyeTroop
Active Member
- Joined
- Aug 18, 2007
Matt went above and beyond with my specific pump issue. I couldn't have asked for anything more. He kept his word when it would have been easy to turn his back. Thanks again.
Do a search, this has been discussed and performed starting at least 15-16 years ago.
just plain john
El Camino a Go-Go!
- Joined
- Feb 24, 2007
No search results found when searching for threads titled 'Walbro pressure releif valve'
Mike Licht
I was here first
- Joined
- May 23, 2001
it is a known mod, this is what makes an XP pump "xp" It works lots of people do it
Mike
Mike
TR Custom Parts
Mark Hueffman - Owner
- Joined
- May 25, 2001
Google is your friend.
Never done this myself but guess this is what is involved. My new pump from Racetronix is still running a year later but is about 5-6 lbs down from where it should be under boost. Wideband says everything is OK so haven't done anything to mine. At 20 lbs of boost I get 57 lbs of fuel pressure, should be 63 lbs.
d2m - Driven2Modify.com - THE Southeastern Automotive Forums - View Single Post - How to modify a walbro
Never done this myself but guess this is what is involved. My new pump from Racetronix is still running a year later but is about 5-6 lbs down from where it should be under boost. Wideband says everything is OK so haven't done anything to mine. At 20 lbs of boost I get 57 lbs of fuel pressure, should be 63 lbs.d2m - Driven2Modify.com - THE Southeastern Automotive Forums - View Single Post - How to modify a walbro
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