Engine light after headers.

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KinggBerryy

Junior Member
Joined
Oct 7, 2021
Posts
1
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Location
Tennessee
Ram Year
2016
Engine
Hemi 5.7
Headers installed 2 weeks ago. Immediately threw code p0420. Added nonfouler to o2 sensor. That code went away and came back with P2096. Added another no fouler to bank 1L1 Was good for 2 days and light just appeared again.
For reference, driver cat had to be pushed way back sitting just behind front passenger seat. I know it's not getting hot enough anymore. Which is why I used nonfouler. I also have a "ringing" sound that flauxuates with the amount of rpms in pipe directly under my feet. Im being told its the difference in sound cause the cat isn't there and the air is now denser so sounds different.
The guy who installed doesn't know what to do tbh.
 

Dean2

Senior Member
Joined
Jun 17, 2021
Posts
2,718
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3,941
Location
Near Edmonton
Ram Year
2021 2500
Engine
6.4
Go find a better shop. This is not a remote diagnosis fix unfortunately.
 
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