Sniper efi

[1969Camaro]

After having several no start issues and having to be flatbeded home with the sniper 1. I got it to the only high performance shop in town, the tech after several conversations with Holley said that they don’t support the Sniper 1 and weren’t any help other than to recommend upgrade to Sniper 2, which we did. It’s ran ok for the last couple of weeks, but this week is our graffiti week with downtown cruise and lots of car shows. Right in the middle of the cruise car starts running really crappy so I pull off to the side and shut it off. Sat for awhile and tried to start, no go. I’m thinking maybe it’s the fuel pump, so what pump is recommended? I’ve spent a lot of money on towing the last month or so, that tow hook really works and came in handy. I’m almost at the point of ripping the whole sniper system out and going to carb…I can figure out and start a car with a carb and a distributor. I am clueless about efi and I’m too old to even try to learn it. I know to some people on here that’s sacrilege, but I’ve dealt with carbs my entire life. Anyway the last thing I’m going to try is to change in intank fuel pump. I’m asking for recommendations because I know squat about these pumps. Thanks for letting me vent.

[gbranham]

If you're seriously considering ripping it out, consider the Edelbrock ProFlo4 EFI system. Its a fundamentally different design than the Sniper 2, and its been rock-solid on my 427. No tuning required.

Sorry for your troubles. I know that can really sour the experience.

Greg

[Papa]

After several years of chasing an issue on my car with multiple setups, I think I finally found the issue and it had absolutely nothing to do with any of the EFI parts that have been on my car. It was an issue with a bad wiring connection made before my car was ever started.

[Reddrig]

After several years of chasing an issue on my car with multiple setups, I think I finally found the issue and it had absolutely nothing to do with any of the EFI parts that have been on my car. It was an issue with a bad wiring connection made before my car was ever started.

I tend to agree with this, they sell hundreds of thousands of Sniper units. It’s unfortunate when these issues arise, but you need start with the basics and start checking off boxes to find the real problem. Since your car was running decent for a while, I would look at your fueling System first. Start with your pump, you can get a fuel pressure reading fairly easy and solve that one quickly. Then move onto electrical and just methodically go through all your systems. I wouldn’t just throw good money at new parts until you truly identify the bad part or the problem within a system.

[Reddrig]

After several years of chasing an issue on my car with multiple setups, I think I finally found the issue and it had absolutely nothing to do with any of the EFI parts that have been on my car. It was an issue with a bad wiring connection made before my car was ever started.

I tend to agree with this, they sell hundreds of thousands of Sniper units. It’s unfortunate when these issues arise, but you need start with the basics and start checking off boxes to find the real problem. Since your car was running decent for a while, I would look at your fueling System first. Start with your pump, you can get a fuel pressure reading fairly easy and solve that one quickly. Then move onto electrical and just methodically go through all your systems. I wouldn’t just throw good money at new parts until you truly identify the bad part or the problem within a system.

[cv2065]

Sorry for your experience. As you said, lots of shows and events this time of year. That’s the downside of EFI. When they go down, it’s tow truck time as you’ll have to go through a series of troubleshooting to get to the root cause. I think there were some Sniper 2 recalls late last year, something in regard to throttle bodies. Not sure if you might have a unit that was affected. If you have the ability to fine tune a carb, it may be the better option. I love my QuickFuel 750 Brawler with mechanical secondaries.