- O2 sensor
- p0420 code
- check engine light
The elbow faces the wrong direction when threaded in with the adapter so I'm only using the straight adapter and it still triggers a 02 code here and there but I've got a scan guage2 to delete codes, it would be nice to have a washer or two added to the kit so you can possibly get it to tighten in a different direction. I have the highflow cat still on so I have to have the extra adapter to clear the converter case. Highquality tho
It worked perfectly. Installed the ZZP downpipe, and plugged the downstream o2 sensor into the **** extender and so far No CEL light. Very satisfied.
Worked for me!
A must have when you are modding your car behind enemy lines. If you don't know what that mean, then don't mod your car behind enemy lines.
Good and it took care of my problem
Check engine light be gone!
I purchased this back in February this year to get rid of a check engine light from my high flow cat, and I haven't received a cel since! I would highly recommend this.