Re: Wiring up Sniper EFI. Where did you hook the pink 12v wire
[Re: superwrench]
#2474730
03/31/18 02:52 AM
03/31/18 02:52 AM
|
Joined: Aug 2011
Posts: 2,853 Pattison Texas
CSK
master
|
master
Joined: Aug 2011
Posts: 2,853
Pattison Texas
|
Need to hook it up with a relay hooked to battery power, triggered by the ign switch.
1968 Charger COLD A/C Hilborn EFI 512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim 2020 T/A 392 Stock 11.79 @ 114.5
|
|
|
Re: Wiring up Sniper EFI. Where did you hook the pink 12v wire
[Re: CSK]
#2474736
03/31/18 03:09 AM
03/31/18 03:09 AM
|
Joined: Jan 2003
Posts: 30,995 Oregon
AndyF
I Win
|
I Win
Joined: Jan 2003
Posts: 30,995
Oregon
|
Need to hook it up with a relay hooked to battery power, triggered by the ign switch. I'd like to see the schematic for that. Seems to me you have to trigger the relay with either J1 or J2. If you tie them together then you defeat the purpose. So I don't see how a relay solves anything. This question has come up before and the only solution I've seen that appears to work uses a diode to tie the two circuits together without allowing the start voltage to bleed into the run circuit.
|
|
|
Re: Wiring up Sniper EFI. Where did you hook the pink 12v wire
[Re: superwrench]
#2474975
03/31/18 06:24 PM
03/31/18 06:24 PM
|
Joined: Jan 2003
Posts: 25,748 Rio Linda, CA
John_Kunkel
Too Many Posts
|
Too Many Posts
Joined: Jan 2003
Posts: 25,748
Rio Linda, CA
|
Installing a diode between the IGN1 and IGN2 circuits is the simplest way to get a constant key on source. The preferred diode seems to be an IN9004.
The INTERNET, the MISinformation superhighway
|
|
|
Re: Wiring up Sniper EFI. Where did you hook the pink 12v wire
[Re: superwrench]
#2475070
03/31/18 09:07 PM
03/31/18 09:07 PM
|
Joined: Aug 2014
Posts: 562 Ohio
lockjaw-express
mopar
|
mopar
Joined: Aug 2014
Posts: 562
Ohio
|
You get a .7V voltage drop across the diode...if that is only used as a trigger source, it would be OK. However, if the pink wire drives other circuits in the ECU, then it would not be a good idea.
I have the Holley HP, and I just installed a small Painless 4 switch panel under my dash ledge. I know it does not look stock, but for me, it does not matter.
My 2 cents.
Mark
Last edited by lockjaw-express; 03/31/18 09:08 PM.
|
|
|
Re: Wiring up Sniper EFI. Where did you hook the pink 12v wire
[Re: John_Kunkel]
#2475358
04/01/18 01:48 PM
04/01/18 01:48 PM
|
Joined: May 2008
Posts: 5,399 Aurora, Colorado
451Mopar
master
|
master
Joined: May 2008
Posts: 5,399
Aurora, Colorado
|
Installing a diode between the IGN1 and IGN2 circuits is the simplest way to get a constant key on source. The preferred diode seems to be an IN9004. The diode should work as shown above. On my FiTech, I tied both start and run wires together and that supplies the run power to both the FiTech unit and the MSD 6al ignition box.
|
|
|
|
|