04 coba fuel issues

[00gmsonoma]

My car has been having fuel problems. Its got 80s bap on stock pumps new fpdm and rail sensor. Just ported blower 8lb 3.25 upper. Good idle afr and wot afr just weird fuel psi and cuts out at wot.
image-1.jpg Photo by 00gmsonoma | Photobucket
image.jpg Photo by 00gmsonoma | Photobucket

 

[00gmsonoma]

Anybody hAve any ideas?

 

[testorossa1989]

based off your mod list and data it seems like you replaced everything but your pumps and basic knowledge of Duty cycle and the BAP maybe your pumps are showing some fatigue

 

[00gmsonoma]

ya im leaning more torwards a pump. Normal driving just goin from gear to gear as soon as I let off gas a/f gauge goes to 18 then back to 11 then to 14.5 really fast. that is revving motor easily and just shifting normal. duty cycle is .68

 

[Quick Strike]

Did you replace the MAF and have a retune for the mods?

 

[00gmsonoma]

Did you replace the MAF and have a retune for the mods?

Yes car has 2400 maf. It was tuned by eric brooks and it didnt do any of this on dyno.