V1 Which do I jump for the fuel pump?

[barichuk]

I could not tell from the videos where to jump the fuel pump. Could someone point out where exactly this is done?

 

[Ark :D]

This relay right here, you short diagonal corners on it. Which pair, I do not remember, but it won't hurt anything if you pick the wrong pair.

 

[barichuk]

Well, as I live and learn! There is a diagram under the lid of the fuse box. Sorry to say this is not the first stupid thing I've done! Thanks, Ark.

 

[Ark :D]

Well, as I live and learn! There is a diagram under the lid of the fuse box. Sorry to say this is not the first stupid thing I've done! Thanks, Ark.

I apologize for the tone of my original response, I didn't mean it the way it sounded. No excuse, I know, but I was on a conference call and just typed my response out quickly. Sorry about that.

 

[barichuk]

No apology necessary, I got what I needed. You have put me on the right track and I appreciate it much.

 

[ctuinstra]

This relay right here, you short diagonal corners on it. Which pair, I do not remember, but it won't hurt anything if you pick the wrong pair.

View attachment 20845

Not so sure about that. There are at least two cases that I know of where builders have burnt the ground traces away from the underside of the fuse box after jumping the relay incorrectly. I cannot tell you exactly what they did, but they were running engines until they jumped the relay terminals and burnt the trace in two and they would not turn on the fuel pump after. Looking at the diagram, there is a 12V and a ground, if these two terminals were shorted, it if doesn't blow the 15A fuse first, it can burn the traces easily.

 

[Ark :D]

That's probably true. Maybe I got lucky when I jumped the wrong pins during my build.

 

[ctuinstra]

Jump 87 and 30

If you jump 85 to 86 (the opposite corners), nothing should really happen, but you are grounding the signal from the controller. Touching 87a to 85 or 86, you will get one of two things, nothing or you will burn the ground trace, I don't know which one will happen because there isn't enough detail in the wiring diagram to know which one is signal and which one is ground; do you feel lucky?

 

[Brett]

I am one of those that jumped the wrong relay pins. Follow the video, otherwise you could get a no start.

I had to take apart my fuse box and solder in a jumper to fix the trace.

Here is the thread on how to fix it:

Fuel Pump Not Priming

Definitely don't have a ground at pin 85, which I think should be the top left. Mine has 6v so that's an issue. From what I can tell there's some circuitry in the fuse box as that pin doesn't directly feed a wiring harness wire so I can't cheat the ground. Does anyone have a spare fuse box...

dfkitcar.com

Brett