07 z71 silverado

ok well you have probably read my other threads about my fuel problems well they are still there. i just installed a walbro kit from magnacharger i think it came with a walbro 320 and i installed it perfectly and it cranked right up and normal driving is fine but wot just goes so lean i souldnt be leaning out with this pump wat do yall think is my problem bad pcm?

viciousknid

iTrader: (8)

Could be the same thing that Mangled03GMC was having problems with for a long time. Turns out the Sock on the pump was collapsing and choking the pump.

https://www.performancetrucks.net/fo...=fuel+problems

07 z71 silverado

nah i dont think its that this sock it came with has a internal skeletan so it wont. its doing the same thing with this pump as the stock pump the pressure is at about 57 at idle but when i go wot it drops to like 50 and i know its not a bad pump because i just put a brand new stock pump in 1 month ago and just put that walbro in 1 hour ago.

GMCtrk

iTrader: (27)

side note, how do you like your vig 3200, it's the 9.5" triple disk im assuming?

sonoma43

iTrader: (1)

what injectors are you running?

07 z71 silverado

it's a single disk 9.5" i wish i would have went bigger but i love it.


stock

nonnieselman

iTrader: (10)

Whats the IDC?

KLUG'S SS

iTrader: (6)

Did you do your WOT tuning with a wideband?

sonoma43

iTrader: (1)

im thinking it's a tuning issue....

07 z71 silverado

the idc will reach into the 120+. i think its the computer or something i dont think its in the tune. i can add more fuel up top but when i do it just increases the idc.