P0148 fuel delivery error

[Greyhorse]

anybody get one of these codes and if so what was the problem or part that needed replacing????
2018 mustang with roush supercharger
Also 2nd time i got a 0420 code as well dont know if they are related

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[Take12]

What is the car doing? Will it start for a second then die?

 

[Greyhorse]

runs fine with no symptoms, this is the second time ive had the 0420 code for O2 sensor which is bank 2 for the cats, ive been watching afr, fuel pump duty cycle and fuel rail pressures but idk what they should be since pressure is all over the place from 6-700 cruising to 2800psi giving it some throttle. I will take it to Tindol ford soon and drop it off see what they come up with, just dont want to have a lean out condition while WOT or something then ill be starting another post on here crying about that!!

 

[Nanikor]

I’m having the same issue. What was the problem?

 

[Greyhorse]

Idk what caused the fuel delivery error code i reset it and it never came back other than than the p0420 code for the rear o2 reading ended being the catalytic converter ford replaced it and its reading correctly

 

[Nanikor]

Idk what caused the fuel delivery error code i reset it and it never came back other than than the p0420 code for the rear o2 reading ended being the catalytic converter ford replaced it and its reading correctly

That’s weird. A few months ago the p0420 Code came up and the dealer replaced the cat. Now the fuel delivery error and the p0430 which is the other cat came up.

 

[Greyhorse]

Run any fuel additives???

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