AFR creeps up as soon as the boost hits

[OkieRichard]

My afr creeps up when the boost hits, would anyone mind looking at my logs and telling me what is going on! I have a maft pro, zeitronix wideband, and a pocket logger for information. I have the logs downloaded on the megaupload site, which takes like 45 seconds to download because they make you wait if you don't want to pay for their site.

MEGAUPLOAD - The leading online storage and file delivery service
MEGAUPLOAD - The leading online storage and file delivery service
MEGAUPLOAD - The leading online storage and file delivery service
MEGAUPLOAD - The leading online storage and file delivery service
MEGAUPLOAD - The leading online storage and file delivery service

 

[antilag]

Have you dont any tuning with the maf pro? If you have added a bunch of fuel but it doew not change, then there is a problem with your fuel system. Looks like your pump isn't keeping up.

 

[viperlp01]

Ya i dont see a fuel pump?? Why are you asking us why your AFR is going way lean at 20 psi on a stock pump?? If it is not stock have you tried to raise the fuel at the WOT setting??

 

[OkieRichard]

Oh yeah, sorry about that, I do have a bosch 044 in pump with 8 AN all the way up. I've also done the fuel pump relay rewire and am running 850's so there is plenty of injector. I've enriched the WOT a lot!! Maybe I'll check the fuel filter, and get back with you guys. I forgot about that little freaking thing I'll also update my profile.

 

[donniekak]

Check for leaks in the vac line to your fpr.

 

[jrohner]

Check for leaks in the vac line to your fpr.

Yeah, that or something's wrong with the regulator, or the fuel filter is plugged.

 

[OkieRichard]

It runs like it is pissed off again. It was the fuel filter, I have one of those little earls filters. There wasn't what I would presume to be very much gunk on it either. Thing is I put it on only a thousand miles ago. This is going to suck if I have to check it often. Another thing that sucks is I had it tuned by some guys on a dyno and I totally ruined that tune. This problem arrived at the exact same time I changed from a manual boost controller to electronic. So I assumed it needed to be retuned, and now... time to start over I guess.