A/C evaporator temperature sensor part number?
Thread Starter
8th Gear
Joined: Dec 2015
Posts: 8
Likes: 0
A/C evaporator temperature sensor part number?
Hi Guys,
I don't have a Corvette (yet), but I do have an LT1 from a 1994 Corvette that I had dropped into my 1984 el camino. Let me tell you, that is one powerful engine.
So, I got it all wired up and running for some time, but now it is time to get the a/c working.
Now looking at the wiring diagram, there is an evaporator temperature sensor that is listed in the diagram that would like to keep functional.
Can someone tell me what the part number is for the evaporator temperature sensor, or someone who has a 1994 Corvette look to see if there is a part number on the sensor?
I think it serves the purpose to keep the compressor from running more than it needs to. When the A/C was working before the swap, the accumulator would still be cold after the evaporator. That tells me that the compressor was running longer than it needed to and was burning more fuel.
Thanks in advance, Chad.
I don't have a Corvette (yet), but I do have an LT1 from a 1994 Corvette that I had dropped into my 1984 el camino. Let me tell you, that is one powerful engine.
So, I got it all wired up and running for some time, but now it is time to get the a/c working.
Now looking at the wiring diagram, there is an evaporator temperature sensor that is listed in the diagram that would like to keep functional.
Can someone tell me what the part number is for the evaporator temperature sensor, or someone who has a 1994 Corvette look to see if there is a part number on the sensor?
I think it serves the purpose to keep the compressor from running more than it needs to. When the A/C was working before the swap, the accumulator would still be cold after the evaporator. That tells me that the compressor was running longer than it needed to and was burning more fuel.
Thanks in advance, Chad.
Last edited by captainchadl; Dec 12, 2015 at 11:58 PM.
Team Owner
Joined: Sep 2003
Posts: 25,394
Likes: 2,741
I wouldn't think you need to be concerned with anything other than commanding the compressor for your AC and for cooling fan operation when the AC is commanded on. The balance of your AC control is dependent upon the refrigeration unit that you actually use in the car.
I believe the refrigeration in the '94 Corvette uses only a single pressure sensor/switch in the refrigeration system and of course the cycling switch.
In your wiring schematic you're likely seeing maybe the interior temp sensor that would be used for C68 AUTO AC TEMP control. Is your wiring schematic from a Corvette FSM or?
Post a snapshot of the wiring schematic that you've got pointing out what you're questioning.
I believe the refrigeration in the '94 Corvette uses only a single pressure sensor/switch in the refrigeration system and of course the cycling switch.
In your wiring schematic you're likely seeing maybe the interior temp sensor that would be used for C68 AUTO AC TEMP control. Is your wiring schematic from a Corvette FSM or?
Post a snapshot of the wiring schematic that you've got pointing out what you're questioning.
Thread Starter
8th Gear
Joined: Dec 2015
Posts: 8
Likes: 0
I wouldn't think you need to be concerned with anything other than commanding the compressor for your AC and for cooling fan operation when the AC is commanded on. The balance of your AC control is dependent upon the refrigeration unit that you actually use in the car.
I believe the refrigeration in the '94 Corvette uses only a single pressure sensor/switch in the refrigeration system and of course the cycling switch.
In your wiring schematic you're likely seeing maybe the interior temp sensor that would be used for C68 AUTO AC TEMP control. Is your wiring schematic from a Corvette FSM or?
Post a snapshot of the wiring schematic that you've got pointing out what you're questioning.
I believe the refrigeration in the '94 Corvette uses only a single pressure sensor/switch in the refrigeration system and of course the cycling switch.
In your wiring schematic you're likely seeing maybe the interior temp sensor that would be used for C68 AUTO AC TEMP control. Is your wiring schematic from a Corvette FSM or?
Post a snapshot of the wiring schematic that you've got pointing out what you're questioning.
I do have two questions. 1.) What side of the compresser does the pressure sensor go on? (high or low?) 2.) Dose it have to have a cycling switch for the compresser and what side of the compressor dose it go on? (high or low?)
Team Owner
Joined: Sep 2003
Posts: 25,394
Likes: 2,741
http://www.wholesalegmpartsonline.co...rimLevel=25296
Cycling switch is #6, orifice #2 should have a similar location in your G body:
http://www.wholesalegmpartsonline.co...rimLevel=25296
You'll of course need to locate your own accumulator and then plumb the entire system.
I noticed a post earlier regarding the LT1 so the project I guess is moving along well.
Last edited by WVZR-1; Dec 19, 2015 at 10:35 PM.
Thread Starter
8th Gear
Joined: Dec 2015
Posts: 8
Likes: 0
Awesome. I was planing on using the stock evaporator, drier, condenser, and cabin A/C contols. I am going to use the LT1 compressor and pcm / switches to control the A/C.
I was cleaning the harness up today and from the A/C request signal to the PCM, a connector that looked like a connector for a cycling switch.
I appreciate the information. I will probably use the vette cycling switch as long as the threads are the same size as the el camino cycling switch.
I was cleaning the harness up today and from the A/C request signal to the PCM, a connector that looked like a connector for a cycling switch.
I appreciate the information. I will probably use the vette cycling switch as long as the threads are the same size as the el camino cycling switch.
