I'd hook a timing light to the coil wire & double check that it ain't firing then I would make up some jumper wires and jump 12V to the upstream side of the ballast then from the downstream side of the ballast to the coil positive primary terminal and jump 12V to the hot input wire at the ECU pentastar connector and seperate the pickup connector and jump from it (2 wires) to the ECU pentastar connector. Then jump directly from the coil negative primary terminal to the black/yellow wire pigtail on the ECU pentastar connector. I would strip the (4) wires at the ECU pentastar connnector several inches out from the connector base on the pigtails to make SURE there's a Direct Connnection to confirm/deny that it's a wiring problem. EDIT If you dont want to do any unsightly T ing into the pentastar harness you could unplug it & use some female butt connectors to connect your jumpers to the ECU pins if you choose to do this