420A 420a no power to coil

[LLs420a]

Ok I've searched and havent found anything DIRECTLY related to my problem. I am getting no power to the coil from the wiring harness on a 99 420a all motor. Just built the engine, dropped her back in, and now no spark. Any ideas? I have checked both MFI/ASD and fuel pump relays, both showing correct resistance. I have also replaced crank and cam sensors. So what could be the problem?

 

[luv2rallye]

By no power I assume you mean no voltage on the coil's black/red wire. Is the ASD relay clicking on? If so the wire between those is open. Do you have voltage on the ASD's red/black and black/white wires? If no, check the engine fusebox 30A fuse labeled "Engine".

 

[LLs420a]

Correct. I had a little time yesterday and double checked and have no voltage traveling through the wiring harness whatsoever. I replaced both MFI/ASD and Fuel Pump relays just to be sure, and still nothing. Assuming that its the ECU, I ordered the AFX from Howell today. Now just have to wait on it to arrive

 

[96non turbo 420a]

Correct. I had a little time yesterday and double checked and have no voltage traveling through the wiring harness whatsoever. I replaced both MFI/ASD and Fuel Pump relays just to be sure, and still nothing. Assuming that its the ECU, I ordered the AFX from Howell today. Now just have to wait on it to arrive

What happened?