GenVibe - Community for Pontiac Vibe Enthusiasts

Posted: **Mon Sep 06, 2010 10:09 pm**

2003 vibe GTCheck engine light has been on for a while. code states poor cat perfomance. 123K on the clock. Do I need a new cat converter??

Posted: **Tue Sep 07, 2010 10:06 am**

Probably... or an O2 sensor.You could try this, depending on if you get emission tested: http://forums.genvibe.com/zerothread?id=41173

Poor cat performance code 2003 GT