2005 gto ls2 dbw harness

slideways90 · 07-28-2010, 07:17 PM

sorry if this is a repost of the same question that gets asked a million times. i have searched and havent found a clear answer. im really new to ls series engines and i am attempting to install one into my nissan 240sx. i have full harness, ecm, and throttle pedal. there is nothing on the harness for the pedal. what and where can i find the necessary parts to make a harness for the throttle pedal?

**HSV-GTS-300** · 07-29-2010, 04:47 AM

The APP connector comes off the Instrument Panel Harness & not the Powertrain Harness.

APP wiring

Corresponding Pins on the ECM
ECM - C1 56way connector BLUE

**HSV-GTS-300** · 07-29-2010, 06:04 AM

The Part No for the 10 way connector is given above. It's either a Yazaki or Tyco connector 7223-9730-30

Aftermarket conversion harnesses include the APP connector in the new Powertrain Harness (see item 17) below.

For a seperate APP harness you could try people like:
EFI Connection
Caspars Electronics
Speartech
Street & Performance
Ballenger Motorsports

slideways90 · 07-29-2010, 06:02 PM

thanks alot for that info. ive seen a ton of you post before and have printed what you have posted you sir have alot of useful information. i think im going to send my harness out and have it modifyed to a standalone harness with fuse and relay blocks along with the throttle pedal equipment that is needed. i cant think of the company but i think its one that you listed below. they quoted me 375 for what i need added to the harness which i think is a more than fair price.

whats odd though is i think the module on the pedal has 8 pins and not 10?

**HSV-GTS-300** · 07-30-2010, 12:06 AM

Quote:

Originally Posted by slideways90

whats odd though is i think the module on the pedal has 8 pins and not 10?

Painless is another place you could try.

It wouldn't be the first time GM docs didn't reflect reality.
It's either 6 wires in an 8 pin or a 10 pin plug.

Post up pics of what you've got.

slideways90 · 07-30-2010, 06:04 PM

i dont want to go with painless as they are expensive as all. ill post pics when i get home from the daily grind.

quick question if i were to build my own harness for the pedal and i wanted to add a ob2 port would all i need to do is use the wires for those two applications?

**HSV-GTS-300** · 07-30-2010, 11:26 PM

Yes.

Go to the link below and you'll find pics of aftermarket standalone harnesses for both manual and auto trans GTO LS2. Each connection is numbered and has a description.

http://www.hotrodlane.cc/PDFFILES/ls...nessSquire.pdf

Data Link Connector wiring and pinouts are here:
http://www.ls2.com/forums/showpost.p...8&postcount=17

ECM wiring and pinouts are here:
http://www.ls2.com/forums/showpost.p...0&postcount=22

slideways90 · 07-31-2010, 05:23 PM

here are pics of the plug on the pedal and the throttle body. the pedal has 8 pins throttle body has 6

**HSV-GTS-300** · 07-31-2010, 06:13 PM

Sorry I don't have any info on the Connector or Pinouts for the 8 pin APP.
GM docs for GTO (obviously wrong) only show a 10 cavity connector with 6 pins used.
[Corvette (05&06) and G8(08) docs both show a 6 cavity, 6 pin APP connector.]