Updating Holley Sniper EFI to the latest Software/Firmware. @HolleyPerformance

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How to update the Sniper system to the latest software/firmware. Updating without losing the tune.

Check out our Firebird Playlist for other videos of this project.

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This was more helpful than volleys own video form five years ago thank you

joeysims
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Thanks I successfully updated my sniper system using you video.

sgtray
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Can you please assist me. What can be the problem I did exactly what you did. Put it does not show the file for us to select it on the hand held unit. Everything is on the SD card.

Mindset-hsbe
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What do you suppose is on the update(s)?
Anything noticeable with tuning or drivability?

billybobjoephil
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Hi. It seems you only updated the firmware on the handheld but not on the ECU. According to the instructions, after you update and reboot the handheld you should navigate to the ECU HW/FW button and upgrade the ECU... Please correct me if I'm wrong.

gragumilo
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I know I'ma sound dumb but how do I get it back to the cars readouts like back to the tps afr and everything can't get mine to go back

justingoham