I just pulled the following codes. I have gutted cats, and I haven't gotten around to MIL eliminators...
P0401 EGR flo insuf
P0420 Cat 1 Eff below threshold
P0430 Cat 2 eff below threshold
P0171 Lean 1
P0174 Lean 2
Now I realize that the 2 cat related ones are *most likely* from my gutted cats, so I will Fix that with the Eliminator
According to my search results, the Lean 1 & 2 are detected before all of that, sooo......
And then on the EGR, perhaps I have a bad DPFE?
Mostly I am concerned about the lean codes. What might be causing these?
Thanks
P0401 EGR flo insuf
P0420 Cat 1 Eff below threshold
P0430 Cat 2 eff below threshold
P0171 Lean 1
P0174 Lean 2
Now I realize that the 2 cat related ones are *most likely* from my gutted cats, so I will Fix that with the Eliminator
According to my search results, the Lean 1 & 2 are detected before all of that, sooo......
And then on the EGR, perhaps I have a bad DPFE?
Mostly I am concerned about the lean codes. What might be causing these?
Thanks