[RocktimusPryme]

That’s all connected mechanically. If the engine is turning the distributor is turning even if it’s not firing. The distributor gear rides on the cam gear which is connected to the crank by the timing chain.

[D94]

Yeah you're right. Wasn't thinking about that. A little frazzled right now.

[RocktimusPryme]

Originally Posted by D94

Yeah you're right. Wasn't thinking about that. A little frazzled right now.

Its all good man, no judgement here. You still don't want to be running constantly with no fire because the injectors will be pulsing and potentially dumping fuel. But its not so bad that you cant turn it over and look for spark at the plug.

If you don't find a simple issue on your own, and don't get an answer here I would consider emailing the dudes at EFI Systems Pros (especially if you bought from them, which I always recommend)

Nothing against Holley, but specifically with the EFi stuff I tend to get faster better answers from the guys at EFI systems.

It might help here if you tell everyone exactly what you used to perform the swap.

What has changed from your previously working system? Are you using the same coil? Did you use one of the jumper harnesses from Holley?

[D94]

Basically I'm just replacing a GM HEI I've been using with the Terminator X Stealth for awhile now. All new components, i bought the Hyperspark coil and dizzy from Butler ( I buy alot from them with the poly gear installed which is recommended for Hyd Roller which i have. Hyperspark 2 ignition box and adapter from Holley. Just got the EFISystems Pro adapter because I want to keep using my tach as well. I just verified I'm certainly getting spark. Reached out to Holley, asked me to confirm the LED lights on ecu are reading correct, they are. Light on the ignition box stays Orange when cranking which I believe means no signal from ECU from what I've read. I'll try reaching out to EFi Systems I've bought from them in the past Agree, great dudes. I've been doing alot of this troublshooting with the fuel pump relay out so I'm not constantly dumping fuel thx.. I'm actually digging out my 850 double pumper now just in case. This is getting crazy.

[D94]

Ok. I found the issue. The distributor pigtail was wired incorrectly from Holley. After correcting that I got RPM signal. Engine fired up for a minute then stalled. I wasn't expecting it to fire right up with dizzy at 0 TDC like they call for. Normally my idle timing is 24-26. I'm going to mess with that today, but at least I'm making progress. Thx again.