Electrical Jumping alternator dash wire after digital dash install?

Grn92LX

Fidanza Man!
Founding Member
Jan 14, 2001
6,770
50
129
New York
Visit site
Just looking for verification. Im in the middle of installing my Holley efi 6.86" pro dash. I know I need to jump the wires on pin 2 and 14 on the factory harness to turn on the alternator. Can I just run a simple 14g wire jumper or does it need a resistor soldered in? If so does anyone know what resistor I need or does anyone make a jumper plug n play harness? Thanks
 
  • Sponsors(?)


jrichker

StangNet's favorite TOOL
SN Certified Technician
Mar 10, 2000
27,380
2,721
234
75
Dublin GA
lowendmac.com
Just looking for verification. Im in the middle of installing my Holley efi 6.86" pro dash. I know I need to jump the wires on pin 2 and 14 on the factory harness to turn on the alternator. Can I just run a simple 14g wire jumper or does it need a resistor soldered in? If so does anyone know what resistor I need or does anyone make a jumper plug n play harness? Thanks
attachments\568094


Any 1/2 watt, 500 Ω resistor, or any 1/2 watt resistor between 470- 560 Ω if you can't find a 500 Ω resistor
 
  • Like
Reactions: 1 user

Grn92LX

Fidanza Man!
Founding Member
Jan 14, 2001
6,770
50
129
New York
Visit site
Thanks, got the resistor ordered. Now what would be the best way to do this without cutting the factory wiring? Would a T tap connector on each wire with the resistor soldered in between work ok? T tap-jumper wire-resistor-jumper wire to T tap ? Or does anyone make a plug and play harness?
 

Blown88GT

Founding Member
Nov 13, 1999
2,165
515
164
Palm Beach Gardens, FL
Thanks, got the resistor ordered. Now what would be the best way to do this without cutting the factory wiring? Would a T tap connector on each wire with the resistor soldered in between work ok? T tap-jumper wire-resistor-jumper wire to T tap ? Or does anyone make a plug and play harness?
Yes.
 

Grn92LX

Fidanza Man!
Founding Member
Jan 14, 2001
6,770
50
129
New York
Visit site
Everything worked like a charm, thanks. How hot does a 1/2w 470ohm resistor get? I put a wire covering over the entire jumper I made so it won't touch anything. Is that ok?
 

mikestang63

SN Certified Technician
Aug 27, 2012
10,007
6,820
204
In the garage
sorry for jumping in on this.... putting together my autometer dash for the 90 vert. Am going to put a 500ohm 0.5 W resistor between wires 2 and 14 on the classic dash wiring plug - the two pink wires- even though the instructions do not say this is needed nor did their tech support .. can you post the link to where you bought your resistor?

Wondering if I should also as backup install a 194 bulb between pin 2 and 14 even if not visible for insurance.


1611022561157.jpeg