Major Issues After Install

[MrSinister55]

I didn't. I went this route to simplify install and avoid potential issues. Didn't work! :D Nobody here or at Holley Tech mentioned the distributor as being a potential issue, so I never touched it.

[rschid]

Sorry it didn't work out for you, I understand your frustration. I bought my distributor from Chris at EFISystemPro. He seems very sharp and very willing to help. But he recommends repeatedly to do it one step at a time. His theory is that if you change the fuel system and ignition at the same time and you have a problem, it doubles potential causes. I didn't know that when I started, Just so happened I did the EFI first and then decided to try timing control and ordered the distributor from him and started reading on his website. Anyways, I didn't have issues until I went to timing control and when I switch back the problem goes away, so I know it's the distributor in my case. I'm using the coil driver module that came with my Sniper and an old school canister coil, trying to decide if I want to throw another $250 at the coil & CDI box that are designed for this system to see if that is the issue or just run it like it is. Anyways, sorry it didn't work out for you. Enjoy your hot rod!!!

[MrSinister55]

Thanks. My particular issues only happen after everything is heat soaked under the hood, so it could be any of the electronics. I did replace the alternator and coil, and I was using the Holley coil driver instead of the CDI box I had been running with the carb. It's odd to me that I never had any issues with interference with the two CDI boxes I had in this car (killed one by forgetting to disconnect the battery when welding on the frame), nor do I get any noise through the radio. The only real bummer is the hit to my wallet, the rest is just hot rodding.

[rschid]

Yeah, mine didn't act up until I was 30 miles from home. I didn't know if I was going to make it home. Not to say RFI can't be an issue, but I think they led you down the wrong path.

[MrSinister55]

Went to a party on the 4th and was talking to a guy who went with the MSD Atomic EFI. He had been running his with zero issues for a couple years, until this summer. His is now just cutting off at random. I don't need that. Even if I did get this thing sorted, I'd never trust it to take it any real distance.

[UR50SLO]

Just had a '63 Chevy II in for Sniper EFI and HyperSpark Distributor & coil. Once running it would cut off, back fire, black smoke, etc. Tried putting the power to the units off a relay so a clean battery source, no change. Had some bad spots in the wires (we knew this) had new wires to replace (MSD 8.5). Replaced the wires and the problem is instantly gone. If you have a ignition miss anywhere in your system it will cause the Sniper to freak out. Hope this helps you guys. Scott