Conversions & Hybrids - How to DBW to manual tb LQ9, 2004?
02-17-2011, 07:02 AM
I have decided to expedite my project and convert to manual throttle body from the DBW. I have a 2004 LQ9 with a Magnacharger in my 69 GTO. What do I need to change aside from the TB and adding the correct cable? What changes in the pinout at the computer and which wires get eliminated? Any photos of the wiring would be much appreciated. My harness is from a 2004 2500HD truck. I also need to know which factory under hood fuse/relay panel to use to make everything "plug together". Again photos would be a big help.
02-17-2011, 10:26 AM
*EDIT* The info below assumes you have a PCM that can support IAC and TPS. See link below this post for more detail.
You will need to add an Idle Air Control (IAC) connector and a Throttle Position Sensor (TPS). For the TPS connector you can reuse the Oil Pressure Sensor plug. Remove the wires for the TAC module (the sensor for the gas pedal). Eliminate Pins 14 and 15 on C1 (Blue)
The wiring is pretty straight forward after that. Assuming you re-use your Oil Pressure Sensor as a TPS connector then you can use the attached image to wire to the correct pins. Credit to Brendan over at Lt1swap.com
02-17-2011, 11:13 AM
Check this out first.
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