Ghoul
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I have a 2021 mustang gt, shop just installed my whipple and fore dual pump fuel system. Lund is tuning it.
Fuel pressure is set to 58psi on the first regulator and 43psi on the 2nd regulator. They have it set up in series so the lines feed from the fuel pump to the passenger side HPFP to the regulator (58psi), to the rail, then it snakes over to the other side of the rail, to the return regulator (43psi), back to the fuel pump.
My initial data log looked good. Slow climb and engine revs were smooth. Lund then asked for a datalog at WOT. This is where the issues start. At WOT, you can feel the car fighting itself when trying to go WOT. Datalog shows that bank 1 is pulling fuel -15% and bank 2 is normal at around +3%. We checked everything on the install, everything looks correct.
The shop thinks it's the injectors, Lund says that's unlikely. Everything except for the fuel system came off from my 2018 mustang, including the injectors. Everything was working fine on my 2018 but we threw a fuel system on my new one and now we get issues. The shop basically said we can't figure it out and they suggest i look in the forums for help lol. Is there any suggestions as to fix this? Bank 1 is pulling fuel because it thinks the car is rich and bank 2 isn't getting enough fuel.
The shop did a smoke test and said they didn't see any issues. They also verified that both pumps are working. I'm completely lost as to what the problem can be at this point besides the injectors, O2 sensors (possibly the upstreams are connected to the wrong side connectors?), leak in the longtubes where it attaches to the motor? Lund is suggesting to change the system to a parallel feed but Fore says that shouldn't cause an issue with the amount of power I'm making.
Any help is appreciated.
Fuel pressure is set to 58psi on the first regulator and 43psi on the 2nd regulator. They have it set up in series so the lines feed from the fuel pump to the passenger side HPFP to the regulator (58psi), to the rail, then it snakes over to the other side of the rail, to the return regulator (43psi), back to the fuel pump.
My initial data log looked good. Slow climb and engine revs were smooth. Lund then asked for a datalog at WOT. This is where the issues start. At WOT, you can feel the car fighting itself when trying to go WOT. Datalog shows that bank 1 is pulling fuel -15% and bank 2 is normal at around +3%. We checked everything on the install, everything looks correct.
The shop thinks it's the injectors, Lund says that's unlikely. Everything except for the fuel system came off from my 2018 mustang, including the injectors. Everything was working fine on my 2018 but we threw a fuel system on my new one and now we get issues. The shop basically said we can't figure it out and they suggest i look in the forums for help lol. Is there any suggestions as to fix this? Bank 1 is pulling fuel because it thinks the car is rich and bank 2 isn't getting enough fuel.
The shop did a smoke test and said they didn't see any issues. They also verified that both pumps are working. I'm completely lost as to what the problem can be at this point besides the injectors, O2 sensors (possibly the upstreams are connected to the wrong side connectors?), leak in the longtubes where it attaches to the motor? Lund is suggesting to change the system to a parallel feed but Fore says that shouldn't cause an issue with the amount of power I'm making.
Any help is appreciated.
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