long_meats
Senior Member
- Joined
- Oct 9, 2018
- Threads
- 14
- Messages
- 272
- Reaction score
- 115
- Location
- Richmond VA
- Vehicle(s)
- 2017 Civic Coupe LX CVT
Wow, only took 3 days to flag another P0420, so looks like I might be going in the wrong direction and will try removing the crush washer I added between the O2 sensor and extra short spacer while keeping the crush washer that's between the downpipe and the extra short spacer on.Flagged P0420 again after a little over 2 months since my last update, but before I try boring out the hole further I decided to try something else and removed the thicker washer and replaced it with the 2 crush washers that came with the extra short spacer, placing one before and also one after the spacer. We'll see what happens.
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