Catted downpipe CEL

[MaoFC3]

Hey all, I recently got an 02 extender for my prl downpipe, and whenever i tightened the 02 sensor on the socket of the defouler the lights went away, but maybe a day after driving the CEL came back on??? So i rechecked everything and it was fine and im pretty confused on whats going on...i need to pass inspection so ive been clearing the code through tunerview but literally the light keeps coming back on after 50 miles or so....any options??

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[hobby-man]

Spacers aren't a guarantee. Mine always comes on in the winter but goes away in summer. Disable the code with Ktuner or put your stock DP on for emissions testing.

 

[trapbryan]

I have a PRL catted dp and I had to disable codes p0139, p0140, p0420 if I remember correctly

 

[MaoFC3]

Spacers aren't a guarantee. Mine always comes on in the winter but goes away in summer. Disable the code with Ktuner or put your stock DP on for emissions testing.

Ill try the codes, putting on stock dp sounds terrible since my installation was horrifying lol

 

[MaoFC3]

I have a PRL catted dp and I had to disable codes p0139, p0140, p0420 if I remember correctly

Noted!

 

[hobby-man]

Ill try the codes, putting on stock dp sounds terrible since my installation was horrifying lol

Did you break any studs lol? I was terrified of doing that. I have all the codes disabled on my tune now as well.

 

[MaoFC3]

i stripped something and took me forever to rethread lol ?

 

[suhhh]

Ill try the codes, putting on stock dp sounds terrible since my installation was horrifying lol

I felt this in my heart, I am here for you brother.

I never want to go through with a downpipe installation on these cars again my god I wanted to die

 

[Oscars]

Catted PRL downpipe CEL

Which options must be checked in Ktuner to keep CEL from coming back?

 

[hobby-man]

Catted PRL downpipe CEL

Which options must be checked in Ktuner to keep CEL from coming back?

P0420 and P0138/9

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