# air/fuel ratio guage install **URL:** \ **Category:** SON240sx Automotive\ **Created:** [December 4, 2005, 2:54pm UTC](https://forums.speedlife.net/t/air-fuel-ratio-guage-install/90895 "2005-12-04T14:54:02Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![Ka24](https://avatars.discourse-cdn.com/v4/letter/k/d6d6ee/32.png) [@Ka24](https://forums.speedlife.net/u/Ka24)\ **Post date:** [December 4, 2005, 2:54pm UTC](https://forums.speedlife.net/t/air-fuel-ratio-guage-install/90895/1 "2005-12-04T14:54:02Z")
k i have no idea how to install this, its a autometer narrowband gauge im guessing red goes to power black goes to ground and purple goes to the o2 sensor??? ---
**Author:** ![spd-dmn](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/spd-dmn/32/5513_2.png) [@spd-dmn](https://forums.speedlife.net/u/spd-dmn)\ **Post date:** [December 4, 2005, 3:08pm UTC](https://forums.speedlife.net/t/air-fuel-ratio-guage-install/90895/2 "2005-12-04T15:08:04Z")
Don’t be a ricer. ---
**Author:** ![Gonad](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/gonad/32/5481_2.png) [@Gonad](https://forums.speedlife.net/u/Gonad)\ **Post date:** [December 4, 2005, 3:18pm UTC](https://forums.speedlife.net/t/air-fuel-ratio-guage-install/90895/3 "2005-12-04T15:18:04Z")
Didn’t it come with instructions? ---
**Author:** ![alesserfate](https://avatars.discourse-cdn.com/v4/letter/a/f6c823/32.png) [@alesserfate](https://forums.speedlife.net/u/alesserfate)\ **Post date:** [December 4, 2005, 3:19pm UTC](https://forums.speedlife.net/t/air-fuel-ratio-guage-install/90895/4 "2005-12-04T15:19:39Z")
red and black should be power, red is always (+) when DC, but make sure in the instructions some companies like to mess their colors up ---
**Author:** ![Ka24](https://avatars.discourse-cdn.com/v4/letter/k/d6d6ee/32.png) [@Ka24](https://forums.speedlife.net/u/Ka24)\ **Post date:** [December 4, 2005, 4:25pm UTC](https://forums.speedlife.net/t/air-fuel-ratio-guage-install/90895/5 "2005-12-04T16:25:00Z")
didnt get instructions ---
**Author:** ![GT-101](https://avatars.discourse-cdn.com/v4/letter/g/898d66/32.png) [@GT-101](https://forums.speedlife.net/u/GT-101)\ **Post date:** [December 4, 2005, 8:36pm UTC](https://forums.speedlife.net/t/air-fuel-ratio-guage-install/90895/6 "2005-12-04T20:36:21Z")
Here you go: [http://www.projectwrx.com/modules.php?name=Content&pa=showpage&pid=3](http://www.projectwrx.com/modules.php?name=Content&pa=showpage&pid=3) For the wirining. Not sure if you have OBDI or OBDII. OBDI: [http://www.plxdevices.com/ECUDatabase/Nissan/Nissan\_240SX\_Sentra\_PulsarGTiR\_NX\_Altima\_Bluebird\_InfinitiG20\_89\_94.pdf](http://www.plxdevices.com/ECUDatabase/Nissan/Nissan_240SX_Sentra_PulsarGTiR_NX_Altima_Bluebird_InfinitiG20_89_94.pdf) OBDII: [http://www.plxdevices.com/ECUDatabase/Nissan/Nissan\_240SXOBD2\_95\_98\_Sentra\_non972.0L\_97\_99\_200SXnon972.0L\_97\_98\_Altima\_non96CA\_96\_99\_InfinitiG20\_99.pdf](http://www.plxdevices.com/ECUDatabase/Nissan/Nissan_240SXOBD2_95_98_Sentra_non972.0L_97_99_200SXnon972.0L_97_98_Altima_non96CA_96_99_InfinitiG20_99.pdf) ---
**Author:** ![Bero](https://avatars.discourse-cdn.com/v4/letter/b/e8c25b/32.png) [@Bero](https://forums.speedlife.net/u/Bero)\ **Post date:** [December 6, 2005, 9:41pm UTC](https://forums.speedlife.net/t/air-fuel-ratio-guage-install/90895/7 "2005-12-06T21:41:43Z")
mike you ass, a/f gauges dont make you a ricer, hardparking does… BAHAHA purple goes to signal, red is power, black is ground, correct. you dont have to wire to ecu though… just run it to the 02 sensor wiring… easy shiz, 5 min install ---
**Author:** ![spd-dmn](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/spd-dmn/32/5513_2.png) [@spd-dmn](https://forums.speedlife.net/u/spd-dmn)\ **Post date:** [December 6, 2005, 10:33pm UTC](https://forums.speedlife.net/t/air-fuel-ratio-guage-install/90895/8 "2005-12-06T22:33:29Z")
hahaha maybe… BUT narrowband a/f = rice ---
**Author:** ![GT-101](https://avatars.discourse-cdn.com/v4/letter/g/898d66/32.png) [@GT-101](https://forums.speedlife.net/u/GT-101)\ **Post date:** [December 6, 2005, 11:08pm UTC](https://forums.speedlife.net/t/air-fuel-ratio-guage-install/90895/9 "2005-12-06T23:08:46Z")
> [@spd-dmn](#): > > hahaha maybe… > > BUT > > narrowband a/f = rice Agreed, wideband is the way to go, :D/ BTW: Mike V-mount setups add the real power right? 😉 ---
**Author:** ![Bero](https://avatars.discourse-cdn.com/v4/letter/b/e8c25b/32.png) [@Bero](https://forums.speedlife.net/u/Bero)\ **Post date:** [December 6, 2005, 11:30pm UTC](https://forums.speedlife.net/t/air-fuel-ratio-guage-install/90895/10 "2005-12-06T23:30:58Z")
i agree, narrowband does suck, BUT is it not better to have a little idea of whats going on than none at all? plus, narrowband still has its uses, maybe not for total tuning, but to know how much fuel you are wasting at 3000 in 5th gear crusing when the needle is almost full rich… ballsface ---
**Author:** ![Ka24](https://avatars.discourse-cdn.com/v4/letter/k/d6d6ee/32.png) [@Ka24](https://forums.speedlife.net/u/Ka24)\ **Post date:** [December 7, 2005, 6:59pm UTC](https://forums.speedlife.net/t/air-fuel-ratio-guage-install/90895/11 "2005-12-07T18:59:43Z")
k and i got these guages for like almost free so it was definitly worth it