# charcol canister. **URL:** \ **Category:** NYSpeed Automotive\ **Created:** [December 29, 2007, 11:28am UTC](https://forums.speedlife.net/t/charcol-canister/40937 "2007-12-29T11:28:06Z")\ **Posts on this page:** 1\ **Showing post:** 18
**Author:** ![Nivek](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/nivek/32/5185_2.png) [@Nivek](https://forums.speedlife.net/u/Nivek)\ **Post date:** [December 29, 2007, 6:49pm UTC](https://forums.speedlife.net/t/charcol-canister/40937/18 "2007-12-29T18:49:33Z")
ok lets take a deeper look then he also said that it could be a o2 sensor… hmm if thats not reading right the ecu is going to compensite for what it is reading. soo first before you do a whole slew of things nyspeeds trainwreck says to do. i would pull the 02 sensor and give it a close inspection clean it off and you can put it back in or even go look at buying a new one if you are not low on cash or feel like replacing it just because its a 94 and a gm truck. then you can look from there. have you replace the pcv valve at all? if not thats also a cheap fix alot cheaper then a o2 sensor but also deals with the vacuum line and the charcol canister. your welcome that i added my .02 cents mike? --- _[View the full topic](https://forums.speedlife.net/t/charcol-canister/40937)._