DATA INFORMATION

For everything related to using Fuel Injection in an FSJ.
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DARREN LILLY
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Joined: Sun Feb 10, 2019 4:14 pm

DATA INFORMATION

Post by DARREN LILLY » Fri May 22, 2020 4:58 pm

Hi how do I retrieve data information from the system to be analysed to find faults in the system. Is there any form of OBD. Thanks
1979 chief 360 auto QT Australia


KJ Ryu
Posts: 984
Joined: Sun Jun 10, 2012 8:03 am
Location: Casper

Re: DATA INFORMATION

Post by KJ Ryu » Fri May 22, 2020 9:19 pm

What system?
Ron

2005 KJ, Hit-n-Run, 2am 6-17-2012, Totaled. :mad:
1977 SJ J10, 4v360, T18, D20, 37x14s, SOA & SF on tons, still ugly.
1978 SJ Wagoneer, 4v360, QT, 33x12.5s, lift by Sawzall :-bd NOT Running :(
1977 SJ J10, SniperEFI 401, QT, D44s, 31X10.5s :fsj:
2006 KJ
Mars wrote:One man's trans leak is another's penetrating oil :D

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Stuka
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Location: Sonora, CA
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Re: DATA INFORMATION

Post by Stuka » Fri May 22, 2020 9:40 pm

Yeah, need to know which EFI you have installed. Typically the answer is "yes".
1981 J10 AMC 258 with HEI and Weber 32/36 DGEV Carb, T176, NP208, D44/M23 with 4.56 gears and Detroit Locker, 6" lift, 33x12.50 Cooper STT's, BJ's Offroad Rear Dozer Bumper.
2017 JKU Rubicon Lifted and stuff
Pevious Jeeps: 1975 Cherokee, 2008 JK, 2005 KJ, 1989 XJ


Topic author
DARREN LILLY
Posts: 55
Joined: Sun Feb 10, 2019 4:14 pm

Re: DATA INFORMATION

Post by DARREN LILLY » Sun May 24, 2020 3:50 pm

good point its a sniper, mine will die after about 20 mins of running with no indication of a problem then if left for a few hours will start straight away again good for another 20 mins, thermal breakdown? how do I get data info from this unit. Thanks
1979 chief 360 auto QT Australia

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REDONE
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Location: Lakewood and Bailey, CO

Re: DATA INFORMATION

Post by REDONE » Sun May 24, 2020 5:27 pm

DARREN LILLY wrote:
Sun May 24, 2020 3:50 pm
good point its a sniper, mine will die after about 20 mins of running with no indication of a problem then if left for a few hours will start straight away again good for another 20 mins, thermal breakdown? how do I get data info from this unit. Thanks
Does your sniper efi use the factory motorcraft ignition module? Because your description is textbook Duraspark failure.
79 J-10 (Honcho Mucho) KE0LSU
304/Performance Fuel Injection TBI/MTA1/SP2P/Magnum rockers
T18/D20/D44s&4.10s/33" Mud Claws
Grizzly Locker Rear
4" front spring drop, 5" rear shackle flip
Chevy style HEI (ECM controlled)
Dolphin "Shark" gauges in a fancy homemade oak bezel
3/4 resto, rotting faster than I've been fixing it.

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Stuka
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Location: Sonora, CA
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Re: DATA INFORMATION

Post by Stuka » Sun May 24, 2020 5:47 pm

Yeah, sounds like a component is getting hot, and then fails until it cools. This is typical of a failing ignition module.
1981 J10 AMC 258 with HEI and Weber 32/36 DGEV Carb, T176, NP208, D44/M23 with 4.56 gears and Detroit Locker, 6" lift, 33x12.50 Cooper STT's, BJ's Offroad Rear Dozer Bumper.
2017 JKU Rubicon Lifted and stuff
Pevious Jeeps: 1975 Cherokee, 2008 JK, 2005 KJ, 1989 XJ


Topic author
DARREN LILLY
Posts: 55
Joined: Sun Feb 10, 2019 4:14 pm

Re: DATA INFORMATION

Post by DARREN LILLY » Mon May 25, 2020 5:05 pm

running all holley equipment, distributer, coil & ignition module all new (but new doesnt mean good)
1979 chief 360 auto QT Australia


KJ Ryu
Posts: 984
Joined: Sun Jun 10, 2012 8:03 am
Location: Casper

Re: DATA INFORMATION

Post by KJ Ryu » Tue May 26, 2020 9:17 pm

Sounds like ignition module to me, too.
Ron

2005 KJ, Hit-n-Run, 2am 6-17-2012, Totaled. :mad:
1977 SJ J10, 4v360, T18, D20, 37x14s, SOA & SF on tons, still ugly.
1978 SJ Wagoneer, 4v360, QT, 33x12.5s, lift by Sawzall :-bd NOT Running :(
1977 SJ J10, SniperEFI 401, QT, D44s, 31X10.5s :fsj:
2006 KJ
Mars wrote:One man's trans leak is another's penetrating oil :D


1979bettywhite
Posts: 520
Joined: Tue Jul 25, 2017 8:14 am

Re: DATA INFORMATION

Post by 1979bettywhite » Thu May 28, 2020 2:36 pm

It's pretty easy to datalog with the sniper system. First you need the software for your PC:

https://www.holley.com/support/resource ... _Injection

Next you need to run a data log either with the dongle for laptop connection, or by starting a log on the touch screen to be saved to the SD card:

https://www.youtube.com/watch?v=rHjLwJQ45Kw

Also, make sure you remember to stop the data log before you cut the ignition. I believe this is fixed in newer versions of the software, but in older versions, the log would not have been saved if you cut ignition first.

When viewing a log with the Sniper software on a PC using the SD card, make sure that you first download the GCF file that the ECU is currently using to the SD card:

https://documents.holley.com/199r11031r.pdf (Page 72)

The Holley site and manual are great sources of info. I have learned quite a bit recently about the system, fine tuning, etc. from all their resources and forums:

https://forums.holley.com/forumdisplay. ... Sniper-EFI

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