Hey guys, I have a v-afc and I'm using the settings posted on that AOL site...it's been running fine except that every now and then my Check Engine light goes on. Up until now I've been resetting the ECM to get rid of the light. So I finally decided to check the code cuz it was bothering me...got a MIL of 61, which in helms refers to a slow response in the primary O2 circuit. This could mean 1 of 2 things, bad O2 sensor or an exhaust leak. However, I'm wondering if the v-afc has anything to do with this? Anyone?