Positive pump wire

vex · 04-08-2011, 04:34 PM

So maybe it's just the time of day or something; but I can't figure out which wire is the positive side of the fuel pump. I have Black, Black/White, Blue, and Red.

I'm thinking it's the Black/White one. Can anyone verify for me?

(S4 NA)

FerociousP · 04-08-2011, 05:14 PM

http://foxed.ca/foxed/index.php?page...nual#secondgen

from the '88 FSM

NoDOHC · 04-08-2011, 06:01 PM

I would remove the circuit opening relay and replace it with a Bosch cube relay. Just tie the positive of the coil and the common to the B/W wire and the blue to the Normally-Open contacts, then connect the fuel pump relay output from your Haltech to the negative of the coil.

vex · 04-08-2011, 06:26 PM

Quote:

Originally Posted by NoDOHC

I would remove the circuit opening relay and replace it with a Bosch cube relay. Just tie the positive of the coil and the common to the B/W wire and the blue to the Normally-Open contacts, then connect the fuel pump relay output from your Haltech to the negative of the coil.

I'm thinking of just doing it direct (as per haltech's instructions). I'll eventually hunt down that relay and get it removed (as I don't really need it anymore).

***TitaniumTT*** · 04-08-2011, 06:52 PM

Blue

vex · 04-08-2011, 07:04 PM

Quote:

Originally Posted by TitaniumTT

Blue

Blue on the female side of things. B/W on the male.

***TitaniumTT*** · 04-08-2011, 08:33 PM

Blue coming out of the tank... that's what you're looking for because you're rewiring the whole circuit and all the way back to that connector and replacing that connector right?

vex · 04-08-2011, 08:57 PM

Quote:

Originally Posted by TitaniumTT

Blue coming out of the tank... that's what you're looking for because you're rewiring the whole circuit and all the way back to that connector and replacing that connector right?

The connector from above shows blue which connects to b/w on the pump (I don't know why it does, but it does).

FRED · 04-09-2011, 06:46 AM

Much like the ignition switch pigtail lead wires don't match the colors of the plug it attaches to on the front harness. Mazda does not seem to recognize the colors of suppliers/vendors wiring/pigtails. So you end up with Mazda fuel pump harness plug having the Blue power wire being connected to a suppliers Black/White power wire. Talking series four car here, not series five.

04-08-2011, 04:34 PM	#1
vex RCC Loves Me Not You Join Date: Jul 2008 Location: Influx. iTrader: (6) Posts: 2,113 Rep Power: 19	Positive pump wire So maybe it's just the time of day or something; but I can't figure out which wire is the positive side of the fuel pump. I have Black, Black/White, Blue, and Red. I'm thinking it's the Black/White one. Can anyone verify for me? (S4 NA) __________________ The Official FC Radiator Thread My Project Thread: Cerberus CCVT Virginia Rotary Group

04-08-2011, 06:01 PM	#3
NoDOHC The quest for more torque Join Date: Sep 2008 Location: Sheboygan, Wisconsin iTrader: (1) Posts: 855 Rep Power: 17	I would remove the circuit opening relay and replace it with a Bosch cube relay. Just tie the positive of the coil and the common to the B/W wire and the blue to the Normally-Open contacts, then connect the fuel pump relay output from your Haltech to the negative of the coil. __________________ 1986 GXL ('87 4-port NA - Haltech E8, LS2 Coils. Defined Autoworks Headers, Dual 2.5" Exhaust (Dual Superflow, dBX mufflers) 1991 Coupe (KYB AGX Shocks, Eibach lowering springs, RB exhaust, Stock and Automatic)

04-08-2011, 06:52 PM	#5
*TitaniumTT* Test Whore - Admin Join Date: Mar 2008 Location: Right Behind you son iTrader: (4) Posts: 4,581 Rep Power: 10	Blue __________________ -The Angry Stig- DGRR 2009, 2011, 2012 & 2013 - Best FC DEALS GAP!! WOOHOOOO!!!!! 2015 Audi S4 - Samantha - Zero Brap S4 2004 RX8 - Jocelyn - 196rwhp, 19mpg fuel to noise converter 2000 Jeep Cherokee Sport - Wifey mobile - Now with 2.5" OME lift and 30" BFG AT KO's! So it begins 1998 Jeep Cherokee - 5 spd, 4" lift, 33" BFG's - Rotary Tow Vehicle 1988 'Vert - In progress 1988 FC Coupe - Gretchen -The attention whore BEAST! I'm a sick individual, what's wrong with you? I'm pure Evil I'm still insane, in the best possible way. I think Brian's idea of romance is using lube. Your rage caused the meteor strike in Russia. The Antichrist would be proud of his minion. You win with your thread. Most everything It's a truck with a steel gate on the back. Just a statement of fact Motec M820, AIM dash, ported 13B-RE Cosmo, 6-spd trans, 4.3 Torsen, custom twin wg fully divided mani, Custom 4" split into 2x 3" exhaust, Custom HMIC, Custom custom custom custom I like to welder stuff.... No Bolt-ons allowed. Dyno'ed @ Speed1 Tuned by me - 405rwhp on WG.... WM50 cuming soon. *-Angry Motherfcker Mode ENGAGED-**

04-08-2011, 08:33 PM	#7
*TitaniumTT* Test Whore - Admin Join Date: Mar 2008 Location: Right Behind you son iTrader: (4) Posts: 4,581 Rep Power: 10	Blue coming out of the tank... that's what you're looking for because you're rewiring the whole circuit and all the way back to that connector and replacing that connector right? __________________ -The Angry Stig- DGRR 2009, 2011, 2012 & 2013 - Best FC DEALS GAP!! WOOHOOOO!!!!! 2015 Audi S4 - Samantha - Zero Brap S4 2004 RX8 - Jocelyn - 196rwhp, 19mpg fuel to noise converter 2000 Jeep Cherokee Sport - Wifey mobile - Now with 2.5" OME lift and 30" BFG AT KO's! So it begins 1998 Jeep Cherokee - 5 spd, 4" lift, 33" BFG's - Rotary Tow Vehicle 1988 'Vert - In progress 1988 FC Coupe - Gretchen -The attention whore BEAST! I'm a sick individual, what's wrong with you? I'm pure Evil I'm still insane, in the best possible way. I think Brian's idea of romance is using lube. Your rage caused the meteor strike in Russia. The Antichrist would be proud of his minion. You win with your thread. Most everything It's a truck with a steel gate on the back. Just a statement of fact Motec M820, AIM dash, ported 13B-RE Cosmo, 6-spd trans, 4.3 Torsen, custom twin wg fully divided mani, Custom 4" split into 2x 3" exhaust, Custom HMIC, Custom custom custom custom I like to welder stuff.... No Bolt-ons allowed. Dyno'ed @ Speed1 Tuned by me - 405rwhp on WG.... WM50 cuming soon. *-Angry Motherfcker Mode ENGAGED-**

04-09-2011, 06:46 AM	#9
FRED Rotary Fan in Training Join Date: Mar 2011 iTrader: (0) Posts: 73 Rep Power: 14	Much like the ignition switch pigtail lead wires don't match the colors of the plug it attaches to on the front harness. Mazda does not seem to recognize the colors of suppliers/vendors wiring/pigtails. So you end up with Mazda fuel pump harness plug having the Blue power wire being connected to a suppliers Black/White power wire. Talking series four car here, not series five.