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CEL 2196 exhaust fix

RedLine GTI

Ready to race!
Location
Boynton Beach, Fl
Car(s)
2008 GTI
Let me just kinda say what happened first and then my question. So I added a 42dd o2 spacer to my dp and cleared my codes and no problems about 2 weeks ago. Today driving code 2196 popped up which means either my front o2 sensor is bad or exhaust leak.

I'm thinking right now that either there is a problem with the spacer not being tight maybe causing the leak or I loosened the end of my dp to fit the o2 spacer and didn't tighten it up enough.

Thought I would try that first but does anybody know if I need clear my code or just drive and see if it goes away? If I clear it how long before I need to wait for it to come back?
 

RedLine GTI

Ready to race!
Location
Boynton Beach, Fl
Car(s)
2008 GTI
Got in my this morning the code was off after being on all day yesterday (didn't do anything to it)...anybody have any ideas if it was maybe just faulty or will it keep bouncing on and off intermittently
 
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