Aleromod.com - View Single Post - Pre-cat O2 Change

Dobbie · 09-19-2011, 08:39 AM

So I just changed the pre-cat O2 yesterday and I noticed a bump in power after 5 mins of driving. I'm not sure if this O2 was factory but I've never changed it in the 3 years (about 30K miles) that I have owned it. The car had 102K (165k km) when I bought it and it now has 132K (213k km).

I noticed I was getting around 21-24 MPG so I'm hoping to see an increase from that.

09-19-2011, 08:39 AM	#1
Dobbie GX Member Join Date: Jun 2011 Location: NB Canada Posts: 80	Pre-cat O2 Change So I just changed the pre-cat O2 yesterday and I noticed a bump in power after 5 mins of driving. I'm not sure if this O2 was factory but I've never changed it in the 3 years (about 30K miles) that I have owned it. The car had 102K (165k km) when I bought it and it now has 132K (213k km). I noticed I was getting around 21-24 MPG so I'm hoping to see an increase from that. __________________ 2003 Alero 2.2 Ecotec Auto - Cosmo intake - cleared/painted headlights Last edited by Dobbie : 09-19-2011 at 11:26 AM.