# 90' s13, what are 2 wire colours that turn on the fuel pump ? at the sending unit **URL:** \ **Category:** SON240sx Automotive\ **Created:** [January 2, 2010, 1:26pm UTC](https://forums.speedlife.net/t/90-s13-what-are-2-wire-colours-that-turn-on-the-fuel-pump-at-the-sending-unit/130595 "2010-01-02T13:26:48Z")\ **Posts on this page:** 14\ **Page:** 1
**Author:** ![alesserfate](https://avatars.discourse-cdn.com/v4/letter/a/f6c823/32.png) [@alesserfate](https://forums.speedlife.net/u/alesserfate)\ **Post date:** [January 2, 2010, 1:26pm UTC](https://forums.speedlife.net/t/90-s13-what-are-2-wire-colours-that-turn-on-the-fuel-pump-at-the-sending-unit/130595/1 "2010-01-02T13:26:48Z")
hey guys i need to get gas out of a tank thats on a 90’ s13, ignition power is not an option all i have access to is the plug where the sending unit plugs into the chassis harness, there is a couple of wires there, two are to power the pump, the rest for gas level gauge signal what are the two wire colours that power on the pump so I can pump the gas through the fuel lines ? if anyone knows would be great, thanks ---
**Author:** ![Tacoboy](https://avatars.discourse-cdn.com/v4/letter/t/2acd7d/32.png) [@Tacoboy](https://forums.speedlife.net/u/Tacoboy)\ **Post date:** [January 2, 2010, 1:36pm UTC](https://forums.speedlife.net/t/90-s13-what-are-2-wire-colours-that-turn-on-the-fuel-pump-at-the-sending-unit/130595/2 "2010-01-02T13:36:57Z")
Grab a multimeter and check! ---
**Author:** ![alesserfate](https://avatars.discourse-cdn.com/v4/letter/a/f6c823/32.png) [@alesserfate](https://forums.speedlife.net/u/alesserfate)\ **Post date:** [January 2, 2010, 1:43pm UTC](https://forums.speedlife.net/t/90-s13-what-are-2-wire-colours-that-turn-on-the-fuel-pump-at-the-sending-unit/130595/3 "2010-01-02T13:43:30Z")
> [@2007 Roll Call](https://forums.speedlife.net/t/2007-roll-call/25506/5): > > Grab a multimeter and check! check what ? theres no chassis harness ? ---
**Author:** ![S13GG](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/s13gg/32/5506_2.png) [@S13GG](https://forums.speedlife.net/u/S13GG)\ **Post date:** [January 3, 2010, 4:08am UTC](https://forums.speedlife.net/t/90-s13-what-are-2-wire-colours-that-turn-on-the-fuel-pump-at-the-sending-unit/130595/4 "2010-01-03T04:08:34Z")
> [@alesserfate"](#): > > check what ? theres no chassis harness ? continuity. the ground/signal should form a loop that you can check for continuity… I believe my wires were, white-ish (yelloed from fuel stains) 1 with a brown line…?IRC ---
**Author:** ![nitescream](https://avatars.discourse-cdn.com/v4/letter/n/8797f3/32.png) [@nitescream](https://forums.speedlife.net/u/nitescream)\ **Post date:** [January 3, 2010, 5:55am UTC](https://forums.speedlife.net/t/90-s13-what-are-2-wire-colours-that-turn-on-the-fuel-pump-at-the-sending-unit/130595/5 "2010-01-03T05:55:38Z")
i believe the power is the “black with Yellow strip”… From what I remember the outter wires are the power and ground and the inner two are the wires for telling you the level of fuel ---
**Author:** ![alesserfate](https://avatars.discourse-cdn.com/v4/letter/a/f6c823/32.png) [@alesserfate](https://forums.speedlife.net/u/alesserfate)\ **Post date:** [January 5, 2010, 1:10pm UTC](https://forums.speedlife.net/t/90-s13-what-are-2-wire-colours-that-turn-on-the-fuel-pump-at-the-sending-unit/130595/6 "2010-01-05T13:10:57Z")
thanks boys will try today ---
**Author:** ![DT\_racer](https://avatars.discourse-cdn.com/v4/letter/d/9fc29f/32.png) [@DT\_racer](https://forums.speedlife.net/u/DT_racer)\ **Post date:** [January 5, 2010, 8:05pm UTC](https://forums.speedlife.net/t/90-s13-what-are-2-wire-colours-that-turn-on-the-fuel-pump-at-the-sending-unit/130595/7 "2010-01-05T20:05:20Z")
Just worked on mine - looking at the connectors from left to right when standing behind the car: 1st is low fuel, second is pump ground, 3rd is fuel level, 4th (far right) is pump power. I’m upstairs n cleaned up now. Tommorrow I’ll list the wiring colors as well. ---
**Author:** ![alesserfate](https://avatars.discourse-cdn.com/v4/letter/a/f6c823/32.png) [@alesserfate](https://forums.speedlife.net/u/alesserfate)\ **Post date:** [January 5, 2010, 11:44pm UTC](https://forums.speedlife.net/t/90-s13-what-are-2-wire-colours-that-turn-on-the-fuel-pump-at-the-sending-unit/130595/8 "2010-01-05T23:44:45Z")
> [@Just another beautiful Sunday for church....oh wait (pic)](https://forums.speedlife.net/t/just-another-beautiful-sunday-for-church-oh-wait-pic/25540/10): > > Just worked on mine - looking at the connectors from left to right when standing behind the car: 1st is low fuel, second is pump ground, 3rd is fuel level, 4th (far right) is pump power. I’m upstairs n cleaned up now. Tommorrow I’ll list the wiring colors as well. thanks man let me know i’ve yet to get to it, i’ll wait for your reply before i start ---
**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:** [January 6, 2010, 4:45am UTC](https://forums.speedlife.net/t/90-s13-what-are-2-wire-colours-that-turn-on-the-fuel-pump-at-the-sending-unit/130595/9 "2010-01-06T04:45:31Z")
juniors got it jump the two outer wires, b/y to b ---
**Author:** ![DT\_racer](https://avatars.discourse-cdn.com/v4/letter/d/9fc29f/32.png) [@DT\_racer](https://forums.speedlife.net/u/DT_racer)\ **Post date:** [January 6, 2010, 5:25am UTC](https://forums.speedlife.net/t/90-s13-what-are-2-wire-colours-that-turn-on-the-fuel-pump-at-the-sending-unit/130595/10 "2010-01-06T05:25:48Z")
Ok. This is for my 90 S13. From earlier post the connectors on the tank top dont really go left to right, more on an angle like front nearer driver then each one along towards pass rear bumper. Wires are from closest to driver each along towards rear bumper as: Yellow/green -low fuel, Blue/Red - Pump grnd, Yellow - Fuel sender, White/purple - Pump power. GLW the fix. ---
**Author:** ![alesserfate](https://avatars.discourse-cdn.com/v4/letter/a/f6c823/32.png) [@alesserfate](https://forums.speedlife.net/u/alesserfate)\ **Post date:** [January 6, 2010, 4:30pm UTC](https://forums.speedlife.net/t/90-s13-what-are-2-wire-colours-that-turn-on-the-fuel-pump-at-the-sending-unit/130595/11 "2010-01-06T16:30:42Z")
> [@white kid](https://forums.speedlife.net/t/white-kid/25539/5): > > Blue/Red - Pump grnd, White/purple - Pump power. this was god, i stripped the insulation and twisted on a cigatte lighter plug and plugged it into my elimator booster pack and had the gas pumping in 3 minutes… thanks for the colours, i love it when people know what they are talking about ---
**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:** [January 6, 2010, 5:01pm UTC](https://forums.speedlife.net/t/90-s13-what-are-2-wire-colours-that-turn-on-the-fuel-pump-at-the-sending-unit/130595/12 "2010-01-06T17:01:57Z")
haha oops in my defense, i missed the whole part where you wrote its for a 1990 i looked it up quick but that was from a 91 FSM definitely didnt know the zenki and chuki used different colors until now! ---
**Author:** ![alesserfate](https://avatars.discourse-cdn.com/v4/letter/a/f6c823/32.png) [@alesserfate](https://forums.speedlife.net/u/alesserfate)\ **Post date:** [January 6, 2010, 5:17pm UTC](https://forums.speedlife.net/t/90-s13-what-are-2-wire-colours-that-turn-on-the-fuel-pump-at-the-sending-unit/130595/13 "2010-01-06T17:17:29Z")
> [@Well, somebody had to do it......](https://forums.speedlife.net/t/well-somebody-had-to-do-it/25481/106): > > haha oops > > in my defense, i missed the whole part where you wrote its for a 1990 > > i looked it up quick but that was from a 91 FSM > > definitely didnt know the zenki and chuki used different colors > > until now! haha its all good! thanks for everyones help ---
**Author:** ![DT\_racer](https://avatars.discourse-cdn.com/v4/letter/d/9fc29f/32.png) [@DT\_racer](https://forums.speedlife.net/u/DT_racer)\ **Post date:** [January 6, 2010, 11:26pm UTC](https://forums.speedlife.net/t/90-s13-what-are-2-wire-colours-that-turn-on-the-fuel-pump-at-the-sending-unit/130595/14 "2010-01-06T23:26:18Z")
Ur welcome. Glad it helped. Next time I get stuck I know who to call for a hand 🙂