| 2004-2007 Cadillac CTS-V General Discussion Discuss everything about the first generation Cadillac CTS-V that does NOT fall into either the Performance or Appearance Modification category. | Cadillac Forums: LS6 CTS-V PCM Wiring Diagram 
05-29-09, 02:18 PM
|  | Cadillac Owners Connoisseur Cadillac(s): 2005 Redline CTS-V, 1997 Catera  | | Join Date: Mar 2007 Location: Purdue University | | | LS6 CTS-V PCM Wiring Diagram
Hey guys, I was wondering if anyone has the pinout diagram for the 2005 CTS-V PCM. I am trying to hook up my wideband to the EGR sensor input on the PCM so I can log wideband A/f using HpTuners standard edition. If you have the pinout diagram please post it here or PM me. Thanks!
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05-29-09, 02:45 PM
|  | Cadillac Owners Connoisseur Cadillac(s): 2004 CTS-V | | Join Date: Dec 2004 Location: Leesburg, Florida | | | Re: LS6 CTS-V PCM Wiring Diagram
This is for a 2004, but it should do the trick.
#1 is the upper left connector, and make sure you're looking at the right harness (they're labeled by color on the table).
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05-29-09, 03:02 PM
| | Cadillac Owners Connoisseur Cadillac(s): 2005 Redline CTS-V, 1997 Catera | | Join Date: Mar 2007 Location: Purdue University | | | Re: LS6 CTS-V PCM Wiring Diagram
Any idea which pin would be used for the EGR Pintle Position Sensor Signal pin? I want to say it would be 55 and that I can turn the EGR sensor on in the PCM through HPtuners to get it to read the Wideband o2 sensor. Any Ideas? |
05-29-09, 05:51 PM
|  | Mods on hold till diff gets fixed. Cadillac(s): 2005 CTS-V | | Join Date: Jan 2005 Location: South Lyon, MI Age: 60 | | | Re: LS6 CTS-V PCM Wiring Diagram
Quote:
Originally Posted by Cadillac Tony  This is for a 2004, but it should do the trick.
#1 is the upper left connector, and make sure you're looking at the right harness (they're labeled by color on the table). | Can't answer your question, Ted, but it seems that pinout should be put into the FAQ. Where's Reed?
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'05 CTS-V, Stealth Gray, Sunroof, 3M Clear Bra, B&M Shifter w/UUC Bushings, Specter Werkes Bushings, V Headrests, Wheel To Wheel Powertrain Tune, Corsa, Kooks w/Hi-Flo Cats, Ultimate Grid Pedals, Hotchkis Anti-Sways, STS-V Fogs, Ground Control 650R/600F, WW Clear Sidemarkers, Full-Size Spare, Magnuson SC Polished, CTS Console, FG2, Aggressive Street Alignment, MOMO Shift Knob, DSS/Hendrix Engrg Axles, UUC Flywheel. Soon: UUC MMs. 472 RWHP/411 RWTQ (Mustang dyno). |
05-29-09, 06:31 PM
|  | <----- go ahead and stare Cadillac(s): Maggied '05 CTS-V | | Join Date: Jan 2008 Location: West Chester, PA Age: 26 | | | Re: LS6 CTS-V PCM Wiring Diagram
Ted I posted this link in your other thread, not sure if you saw it or if it helps at all.
It's all a bit over my head because I haven't read too much about it, but I see you have to rig something up since we don't have an EGR system. http://www.ls1tech.com/forums/pcm-di...d-ls6-car.html
__________________ 05 CTS-V / maggie 2.8 / b&m shifter & uuc bushings / gto shift knob / kooks lts 1 3/4 + cats / magnaflow / k&n cai / fg2 shocks / hotchkis sways / hawk hps / 265|40 bfg kd / ngk tr6
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05-29-09, 06:50 PM
| | Cadillac Owners Connoisseur Cadillac(s): 2005 Redline CTS-V, 1997 Catera | | Join Date: Mar 2007 Location: Purdue University | | | Re: LS6 CTS-V PCM Wiring Diagram
Yeah, it looks like I'm going to pull one of the pins/wires that the PCM uses to read the post cat 02s and use it in pin 55 on C1. Then apparently I turn on the EGR in hptuners, 0 out all the EGR tables, and make a custom PID in hptuners to read the egr feed as wideband a/f. Not sure what half of that means, but a couple days ago i didn't know what ANY of it meant so I'm learning! |
05-29-09, 08:06 PM
| | <----- go ahead and stare Cadillac(s): Maggied '05 CTS-V | | Join Date: Jan 2008 Location: West Chester, PA Age: 26 | | | Re: LS6 CTS-V PCM Wiring Diagram
lol good luck! |
05-29-09, 08:15 PM
| | Cadillac Owners Connoisseur Cadillac(s): 2005 Redline CTS-V, 1997 Catera | | Join Date: Mar 2007 Location: Purdue University | | | Re: LS6 CTS-V PCM Wiring Diagram
Quote:
Originally Posted by CTSV_510 lol good luck! | Looks like I'm upgrading to pro..so no need for all of this! |
05-29-09, 09:15 PM
| | <----- go ahead and stare Cadillac(s): Maggied '05 CTS-V | | Join Date: Jan 2008 Location: West Chester, PA Age: 26 | | | Re: LS6 CTS-V PCM Wiring Diagram
how does the upgrade get you out of wiring up your wideband? |
05-29-09, 10:01 PM
| | Cadillac Owners Connoisseur Cadillac(s): 2005 Redline CTS-V, 1997 Catera | | Join Date: Mar 2007 Location: Purdue University | | | Re: LS6 CTS-V PCM Wiring Diagram
Quote:
Originally Posted by CTSV_510 how does the upgrade get you out of wiring up your wideband? | Wideband hooks up directly to the pro interface. Really only useful if you are going to be doing a LOT of datalogging which I am planning on doing. I just got a windows laptop just for tuning and logging. |
05-29-09, 10:12 PM
| | <----- go ahead and stare Cadillac(s): Maggied '05 CTS-V | | Join Date: Jan 2008 Location: West Chester, PA Age: 26 | | | Re: LS6 CTS-V PCM Wiring Diagram
Sweet. The hptuners pro and lc-1 setup is on my never ending mod wish list. There are always deals on corvetteforum and ls1gto for the full pro kit with wideband for just under $800 but I'm not ready to pull the trigger yet.
Keep us posted on your adventure into tuning, I am very interested to hear how it goes. I know there is a lot to learn - everyone says that continue learning new things 4 and 5 years after they started learning to tune. I think the reading through all the data logs would be very interesting stuff and you'll learn a lot about your car and be able to tweak every last part the driveability. You've got some fun times and hard work ahead. | | Cadillac Discussion Tools | | | 
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