O2 Sensor Unplug
 

Hey Folks,
Some might remember after me pulling my engine tranny out, I noticed the next morning that the O2 wires were dangling... without a plug!
Well, after my aero cap install and a couple other mods I did a hwy test and saw 4mpg gain. Well, the last few days I saw my mpg drop back down to the original 18mpg hwy. My experience has been even with all the other mods and an EFIE, the mpg just seems to go back to the original mpg after a few days.

So yesterday I took out $64 and put a new O2 sensor in. Now the second O2 (bank 1 sensor 2) is popping a code but it's rotted and the wires are coming out.

Bottom line, I'm seeing my 23mpg hwy again but not sure for how long. The Dodge efi computer must be pretty smart, afterall, it's out-doing me :rolleyes:

Sounds like you are getting better FE in open loop than in closed?

Well, now that I am playing with the MegaSquirt, I should see much better mpg numbers :)