PDA

View Full Version : Serial AC to normal AC request



Skinny Pedal
09-13-2013, 08:48 AM
This is for a customer having issues with a swap they did. They used a 2005 5.3 from a Silverado, OS 12592618. I know that system uses pressure sensor and low pressure switch going to the AC unit then requests over serial.

Anyone know if there is a way to switch a 1 meg blue green ecm from Serial AC request to switched request like the red blue ecm?

Is it easiest to tune it as a 04-05 express van that already has ac switches and a normal 12v request?

I read somewhere that TC can make the switch, I have EfI Live and HP only.

Skinny Pedal
09-15-2013, 10:15 PM
Wow, I'm blind. There is a thread a few lines down about this. Hahahaha sorry.

After reading that thread, I still a have few questions.

Is TC the only thing that can change the type of AC? Am I stuck just using a Van OS to get the job done?

Playtoy_18
09-15-2013, 11:14 PM
I have tunercat and Efi,can you post a link to the thread you referenced?I'll see if I can help.

Skinny Pedal
09-15-2013, 11:31 PM
http://www.gearhead-efi.com/Fuel-Injection/showthread.php?2065-LS1b-PCM-A-C-Type

Playtoy_18
09-16-2013, 10:48 AM
Post up the file you want to change.
I'll see if I can find a way to change the platform matrix on it,which according to the other thread might do the trick?

Skinny Pedal
09-16-2013, 07:33 PM
I only have it in an EFI Live file. Will that work?

Playtoy_18
09-16-2013, 08:29 PM
We'll find out.

Caleditor
09-17-2013, 02:12 PM
I am the guy that figured the AC type out and had TC add them.