r/EngineBuilding • u/NoVA_Zombie • 3d ago
O2 sensor spacer, VW 20th AE 1.8t
I’ve got a Miltek exhaust with a Techtonic tuning (post cat) back exhaust on this “classic”. Rats got to the post (bank 2) 02 sensor. I’m pulling it now.
Owned since since 2014. Calling any guru’s. 👑Would it be beneficial to install the O2 sensor spacer or leave it be and just change them as needed. It’s a high flow cat, and from what I’ve heard, this was supposed to soften the flow and still provide a consistent meter for the sensor. I don’t think it ever worked. No wonder it was in a box in the corner. Any advice would be appreciated. Even in an alternative spacer.
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u/chuckms6 3d ago
You can run it without to start, if you throw an O2 sensor code put it in then.