Vintage Air & Two Speed Fan Question
02-22-2009, 06:49 PM
#1
Staging Lane
Thread Starter
Join Date: Mar 2007
Posts: 65
Likes: 0
Received 0 Likes
on
0 Posts
Vintage Air & Two Speed Fan Question A new drop-in LS2 and Vintage Air AC unit question. Can someone guide me through what it would take to utilize the two speed fan control from the ECM in conjunction with the aftermarket AC unit. In stock mode does the two speed fan use inputs from the stock AC sensors or does it just respond to the AC being turned on. If that's the case then how do you interface the Vintage Air AC on signal into the ECM. Hope this isn't as confusing as I make it sound. thanks.
02-23-2009, 03:12 PM
#2
TECH Resident
iTrader: (2)
Join Date: Jun 2006
Location: Roswell, GA
Posts: 802
Likes: 0
Received 0 Likes
on
0 Posts
The only things my LS1 PCM uses for fan control AC-wise is the refrigerant pressure sensor. I don't have the AC request signal hooked up, just the refrigerant pressure sensor. Eventually I need to rewire my compressor clutch to run off the PCM, so that I can take advantage of the RPM and WOT cutoff features.
02-25-2009, 02:29 PM
#4
Simply install the Camaro trinary(three-prong) sensor into the A/C's high pressure line on any system and wire it to the computers original corresponding wires & it will be controlled by the computer as factory. The factory two-speed fan features, using a dual fan such as an LT1 dual fan or LS1 dual fan will work the same as well, if wired to the two fan control wires which also come from the computer.
