Fuel problems....Chip?

Injected1

Member
Ok so after finding out that the fuel pump I purchased was for a carb motor (12psi) I replaced it with an aeromotive a1000. I have braided 8an line from the cell to RPM's fuel rails, 75# injectors, Aeromotive AFPR, 6an return to the tank. After hooking up the fuel pump today I started the truck adjusted the regulator to 45psi and the AEM afr was reading 10.6 at anything over idle but the truck was dumping fuel out the exhaust. It actually ran smoother on the 12psi pump, It felt like a miss at anything over idle. Is this a chip issue most likely? I am using the "MARIO" bin file that Mike Hood tuned I believe. We have almost the same exact build but I will list it for those of you that want to know. What do I need do from here?

4 bolt main .030, TRW l2441, eagle rods, nitrided crank, 415 cam, vortec heads, comp valvetrain, 75#'s, pte 67, synapse WG & BOV, Custom A2A, 3600 yank, RPM race 700r4.

Shooting for high 10's!!!!!!!!!!!!!!!!!!!
 

MRKING

New Parts for Old Trucks
Re: Fuel problems....Chip?

adjust your fuel pressure to match what he was using
 

Injected1

Member
Re: Fuel problems....Chip?

This is the Little Brother: He talked to me about this this morning. He does not have the narrow-band hooked up AT ALL, so I believe the computer is adjusting rich based on no AFR reading.
 

MRKING

New Parts for Old Trucks
Re: Fuel problems....Chip?

He has a wb02 connected and no narrowband or none of either ? With the wb02 output going into the ecm slot you do not need the other 02 hooked up . The code 59 stuff is all for trucks with 3 bar map and wb02 hard wired into the ecm .

Also note if your wb02 is wired in and your still having issues , maybe you dont have the proper wb box checked in the tunerpro settings .
 
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