Jacked a c63

Guys I need some help.

Today after driving my car my CEL came on and I went home to plug it in and found.

Trouble Codes:

P0420 Catalyst System Efficiency Below Threshold Bank1
P0430 Catalyst System Efficiency Below THreshold Bank 2

Pending Codes:

P0420 Catalyst System Efficiency Below Threshold Bank1
P0430 Catalyst System Efficiency Below THreshold Bank 2


My car has headers and midpipes I have no cats.

Are these the codes that are thrown when you install headers and cats?

I recently tuned my car but I can't clear the CEL because it says "DTC have not been met".

Thanks!
Jack

Mark63

I have the same setup as you I think. I remember seeing one of your previous posts on here and you had the same problem as me. With headers/inspection stuff. Yeah I THINK those codes are thrown because you don't have cats. (Not 100% positive) When I got headers and mids they told me I would throw CEL so because of that I bought a tune from OE. It cleared my lights but I should've recorded what codes they threw before having the shop clear them.

Seems connected though, you don't cats because of your headers/midpipes and now you're throwing cat codes so its possible that.

And for the DTC have not met thing I don't know what to say. Maybe bring it to a shop and see if they can clear it (assuming the codes are thrown because of headers/cats/no tune) unless its really an issue then you gotta get that repaired! Goodluck!