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fpr will fix my rich

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exzercist

15+ Year Contributor
267
0
Feb 11, 2004
Adams, Massachusetts
well my logs on my 2g are wicked rich. i have posted them in the tuning section. the lowest my o2 goes is 1.0 bvolts and its 1.02 volts for most of the time at wot. well if you at my mods a ihave a rewired walbro 255 but no safc or fpr. im gonna get a fpr real soon and set it at 43.5 psi i think thats what its suppose to be. this should fix my rich problem right? also when i start boost higher boost say 20 psi with a different turbo most likey 50 trim will the fpr set at 43.5 make me lean or will it regulate the pressure so its still a little rich at wot like its suppose to be?
 
change to NGK plugs and see if that helps first....but looking at your setup you shouldnt be rich...what have you done to you maf
 
i would think you might have to set it a little lower. somewhere around 39-40. youll need to get an afpr and tune it.
 
uh-oh said:
change to NGK plugs and see if that helps first....but looking at your setup you shouldnt be rich...what have you done to you maf

i did nothing to the mas and well if my walbro is overcoming my stock fpr then yeah it will be rich. i dont have an aftermarket fpr yet if that clears up any confusion.
 
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