Has anyone done a conversion from a DBW to a DBC throttle body? If so I was curious how big of a pain in the neck it is and the cost of doing it.

 

With the engine harness removed form the vehicle, unwrap the harness and start removing all the pins for the DBW. Then do a write entire on the ECM with the Operating System from a DBC car.

Installing the throttle pedal and cable is for you to figure out.

 

LT1swap has a good writeup on how to do exactly this.

 

Okay thanks guys!

 

It depends on what ECU you are using. Most Gen IV ECUs do not have IAC drivers.

Andrew

 

It's not that easy
You need to delete all DBW wiring, then you need to install the TPS and IAC wires and connectors using the correct PCM pins.
After that you need to get a DBC capable PCM, a 2004 may have the IAC driver but you need to open it to be sure.
Last step is to flash a DBC tune to have good IAC control.