ok so I really need to know what the little black box squeesed between the battery and the fender is.

it has three of the signals that I need to tap. for the MEGASQUIRT

it has the IGN it has the Tach signal which I belive is the IGN.

it has the fuel pump. and it has one more ill go out and check can anyone help me out?


"boobs now with Riboflabin"

it is the fuse relay center


if you flip it upside down you can gain axcess to the wires


ign and tach you will have to go to the idi plug or to the pcm

Tach signal your going to have to go to go to the PCM (pin 10 on the blue harness i beleive)

the IGN signal can come from anything that is on in RUN/ACC/CRANK..the fuel pump you'll have more than one wire i believe,

its been awhile since i've wired the MS in sorry

yea its the fuse box


http://www.cardomain.com/ride/2090440

fuel pump you can wire that to the injector wires, I forget which one tho, they all go right back to the fuel pump. Don't u have a wiring diagram for the car???

Scott


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RaGiN Z wrote:fuel pump you can wire that to the injector wires, I forget which one tho, they all go right back to the fuel pump. Don't u have a wiring diagram for the car???

Scott

Um, no they don't. If you wire the fuel pump to the injector wires, you're going to have a fire on your hands, not to mention the injector wires are low voltage and pulse driven by the PCM.





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well for starters the I have heard mutilple things about the tach sensor. and so far none have worked. although thesee are new to me ill have to try them.

for the fuel pump Im glad you guys mentionsd that this is the fuze relay. mainlly because the way the MS works with the pump is that the wire basiclly grounds the signal compleateing the circut and turning it on. so wht I really need to know is which wire and where.

hey guys thanks for the help if someone could clear this up it would be much appreciate.


"boobs now with Riboflabin"

the fuel pump relay is lable , so you know which relay it is


as for the wire youll have to test it , i dont remember if the pcm grounds the relay or sends power to it , i think its a ground , the relay sends power to the pump

Why does the MS have to control your fuel pump??

It comes on with the ign. and stays on, right? -- I don't think you would want it to be turning on and off.

However, if you absolutely needed the ground signal from the MS to control the fuel pump- you should wire it up through a relay. Its the safest way- use the ground wire as the signal for the relay to throw 12 volts to the pump.

Hook the ground signal wire from MS to 85.
Put 12 volts to 87 & 86- Probably use ign.
and the 12 volt output to the pump to 30.

This will put 12 volts to the wire attached to 30, when pole 85 sees a ground.