ECUGN users with Smart Coils-Harness Routing @ Firewall into interior

[jmendlik]

What's the best location on firewall to bring the Smart Coil Harness wires & 21 Pin Connector thru into the interior to mate up withthe blue box by pass side kickpanel?

Is drilling a new hole required somehwere in firewall or what have others done?

Would like to keep it as clean as possible.

JM

 

[Turbo6inKY]

I depinned the connector and passed it through the grommet the main harness from the ECM passes through in the passenger kick panel.

 

[turbobuick]

Be careful with your power and grounds with the IGN1a coils. You do NOT want to run them with other wires. You need 3 GNDs one directly to the cyl head, one to the battery and one as EST GND return to the ECU which you can run with the EST trigger wires with the factory harness.

I actually started a harness for this for my Ttype and didn't finish it and will probably just run truck coils. LS coils and Truck coils are NOT the same as IGN1a "smart coils" which make a TON of noise and have different wiring requirements.

I may finish that harness as a PnP for the ECUGN if there is interest in it.

 

[BEATAV8]

de-pinned and stuffed through the speedo cable grommet.
Fired right up & runs nice