# a/f ratio uage wire up **URL:** \ **Category:** SON240sx Automotive\ **Created:** [March 7, 2009, 4:39pm UTC](https://forums.speedlife.net/t/a-f-ratio-uage-wire-up/122372 "2009-03-07T16:39:22Z")\ **Posts on this page:** 15\ **Page:** 1
**Author:** ![kollo](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/kollo/32/5661_2.png) [@kollo](https://forums.speedlife.net/u/kollo)\ **Post date:** [March 7, 2009, 4:39pm UTC](https://forums.speedlife.net/t/a-f-ratio-uage-wire-up/122372/1 "2009-03-07T16:39:22Z")
ok so i have just purchased an air/furl guage it didn`t come with a book which i expected its a stewart warner so heres my question there are three wire connectors on the back one is pos one is neg with a s and another is blank so the question is when i run a wire to the o2 sensor do i splace the wire or just grab another o2 sensor? and where does the positive goto ign?thanks ---
**Author:** ![kollo](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/kollo/32/5661_2.png) [@kollo](https://forums.speedlife.net/u/kollo)\ **Post date:** [March 7, 2009, 4:40pm UTC](https://forums.speedlife.net/t/a-f-ratio-uage-wire-up/122372/2 "2009-03-07T16:40:20Z")
sorry about the title misspell ---
**Author:** ![Dj-Infinit](https://avatars.discourse-cdn.com/v4/letter/d/7cd45c/32.png) [@Dj-Infinit](https://forums.speedlife.net/u/Dj-Infinit)\ **Post date:** [March 7, 2009, 4:51pm UTC](https://forums.speedlife.net/t/a-f-ratio-uage-wire-up/122372/3 "2009-03-07T16:51:31Z")
Pos= Wire acc, Negative= Ground, Other wire= oxygen sensor= Splice… ---
**Author:** ![kollo](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/kollo/32/5661_2.png) [@kollo](https://forums.speedlife.net/u/kollo)\ **Post date:** [March 7, 2009, 6:20pm UTC](https://forums.speedlife.net/t/a-f-ratio-uage-wire-up/122372/4 "2009-03-07T18:20:35Z")
profect thanks randy ---
**Author:** ![Dj-Infinit](https://avatars.discourse-cdn.com/v4/letter/d/7cd45c/32.png) [@Dj-Infinit](https://forums.speedlife.net/u/Dj-Infinit)\ **Post date:** [March 7, 2009, 6:21pm UTC](https://forums.speedlife.net/t/a-f-ratio-uage-wire-up/122372/5 "2009-03-07T18:21:27Z")
np ---
**Author:** ![fastback240](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/fastback240/32/5591_2.png) [@fastback240](https://forums.speedlife.net/u/fastback240)\ **Post date:** [March 7, 2009, 6:22pm UTC](https://forums.speedlife.net/t/a-f-ratio-uage-wire-up/122372/6 "2009-03-07T18:22:23Z")
is it a wide ban or short ban? ---
**Author:** ![kollo](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/kollo/32/5661_2.png) [@kollo](https://forums.speedlife.net/u/kollo)\ **Post date:** [March 7, 2009, 6:25pm UTC](https://forums.speedlife.net/t/a-f-ratio-uage-wire-up/122372/7 "2009-03-07T18:25:35Z")
not sure its the one off of here [http://www.son240sx.org/forums/showthread.php?t=42753](http://www.son240sx.org/forums/showthread.php?t=42753) has two wires for back display and then a pos,neg/s, and a blank terminal ---
**Author:** ![Dj-Infinit](https://avatars.discourse-cdn.com/v4/letter/d/7cd45c/32.png) [@Dj-Infinit](https://forums.speedlife.net/u/Dj-Infinit)\ **Post date:** [March 7, 2009, 6:26pm UTC](https://forums.speedlife.net/t/a-f-ratio-uage-wire-up/122372/8 "2009-03-07T18:26:30Z")
short… my method will work ---
**Author:** ![kollo](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/kollo/32/5661_2.png) [@kollo](https://forums.speedlife.net/u/kollo)\ **Post date:** [March 7, 2009, 6:28pm UTC](https://forums.speedlife.net/t/a-f-ratio-uage-wire-up/122372/9 "2009-03-07T18:28:27Z")
ok i`ll give er a try thanks guys ---
**Author:** ![fastback240](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/fastback240/32/5591_2.png) [@fastback240](https://forums.speedlife.net/u/fastback240)\ **Post date:** [March 7, 2009, 6:31pm UTC](https://forums.speedlife.net/t/a-f-ratio-uage-wire-up/122372/10 "2009-03-07T18:31:51Z")
okie then if you say so ---
**Author:** ![kollo](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/kollo/32/5661_2.png) [@kollo](https://forums.speedlife.net/u/kollo)\ **Post date:** [March 7, 2009, 6:32pm UTC](https://forums.speedlife.net/t/a-f-ratio-uage-wire-up/122372/11 "2009-03-07T18:32:59Z")
ok what now?lol is there a different way to do it?i can grab a pic of the back if you want ---
**Author:** ![Dj-Infinit](https://avatars.discourse-cdn.com/v4/letter/d/7cd45c/32.png) [@Dj-Infinit](https://forums.speedlife.net/u/Dj-Infinit)\ **Post date:** [March 7, 2009, 6:35pm UTC](https://forums.speedlife.net/t/a-f-ratio-uage-wire-up/122372/12 "2009-03-07T18:35:30Z")
[http://www.sw-performance.com/upload/B-751%20115048%20Air%20Fuel%20Ratio.pdf](http://www.sw-performance.com/upload/B-751%20115048%20Air%20Fuel%20Ratio.pdf) ---
**Author:** ![kollo](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/kollo/32/5661_2.png) [@kollo](https://forums.speedlife.net/u/kollo)\ **Post date:** [March 7, 2009, 6:40pm UTC](https://forums.speedlife.net/t/a-f-ratio-uage-wire-up/122372/13 "2009-03-07T18:40:44Z")
prefect im not sayin thanks again ---
**Author:** ![fastback240](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/fastback240/32/5591_2.png) [@fastback240](https://forums.speedlife.net/u/fastback240)\ **Post date:** [March 7, 2009, 7:23pm UTC](https://forums.speedlife.net/t/a-f-ratio-uage-wire-up/122372/14 "2009-03-07T19:23:21Z")
good luck \*edit: let me know, white red or black i belive it is?? ---
**Author:** ![kollo](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/kollo/32/5661_2.png) [@kollo](https://forums.speedlife.net/u/kollo)\ **Post date:** [March 7, 2009, 7:28pm UTC](https://forums.speedlife.net/t/a-f-ratio-uage-wire-up/122372/15 "2009-03-07T19:28:21Z")
?lol i`m just gonna try the narrow band then go up to a wide band soon enough