I know there are alot of old threads about this, but i cannot find the answer.
i bolted up a 91-94 compressor to the sr bracket with the 2 front bolts(topfront/bottomfront)
i put the belt on and it is in a slight bind.
this is supposed to work but i am at a loss.
the compressor is slightly crooked.
so slight that it looks right. but compressor doesn't turn only belt. and the compressor is good it turned freely before installing.
sr20de bracket should be the same as det right?
ac in sr s13 /please help!
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Luke
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180crafter
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- Car: Nissan 240sx
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Luke
I'd like to get the sr compressor to work anyway for peace of mind having it bolted up. I already got the KA compressor off and i've got a shop who's gonna give me the hookupI'm trying to get my A/C working too. I have a Blacktop in a 1990 240sx. I found the following information at Freshalloy.com:
"A/C for the SR in an s13 can use two compressors-- KA24DE (so you dont have to open up the system and recharge, and you can only use the front two compressor bracket bolts)
or SR ( bolts perfectly to bracket (duh) but needs large line modified and a/c recharged.
as for the wiring, wire the SR motor as its always done, but there is a difference in the way USDM and JDM a/c compressor clutch signal is routed.
in the USDM s13, the a/c clutch wire (blue/grn stripe) comes from the body harness, where as in the JDM S13, it comes off the ECCS harness.
the way you make it work, is to install the sr, hook up compressor, and hook up the blue green single spade connector hanging off the frame rail (as it is part of the engine bay body harness, its not going anywhere)
Now, in the SR harness, the battery tray area plugs has a big grey 8 pin connector, just make sure the blue/grn wire goes to the blue/grn wire on the car side of the plug connection (F8 i beleive, just off the top of my head)
also, make sure the green/yellow wire from the grey plug, makes it over to the car side brown plug (the wire is located on a different plug so just swap the wire over
then, at the blue ECU plug, pin 41 goes to the white underdash plug, make sure that the blue/grn wire running from pin 41 going to the white underdash plug makes connection with the blue/grn underdash wire (that is the a/c on signal from your HVAC control panel.
basically this is what happens when your driving your SR and you hit the "A/C" button:-----------------------------
signal from HVAC control panel to pin 41 on ecu, tells ecu to kick up idle, simultaneously, ecu sends signal along green/yellow wire to the a/c relay -- kicking it on, which sends power to the blue/grn wire running in the body harness to the a/c compressor clutch, activating the clutch and making the compressor work."
I hope this helps.
"A/C for the SR in an s13 can use two compressors-- KA24DE (so you dont have to open up the system and recharge, and you can only use the front two compressor bracket bolts)
or SR ( bolts perfectly to bracket (duh) but needs large line modified and a/c recharged.
as for the wiring, wire the SR motor as its always done, but there is a difference in the way USDM and JDM a/c compressor clutch signal is routed.
in the USDM s13, the a/c clutch wire (blue/grn stripe) comes from the body harness, where as in the JDM S13, it comes off the ECCS harness.
the way you make it work, is to install the sr, hook up compressor, and hook up the blue green single spade connector hanging off the frame rail (as it is part of the engine bay body harness, its not going anywhere)
Now, in the SR harness, the battery tray area plugs has a big grey 8 pin connector, just make sure the blue/grn wire goes to the blue/grn wire on the car side of the plug connection (F8 i beleive, just off the top of my head)
also, make sure the green/yellow wire from the grey plug, makes it over to the car side brown plug (the wire is located on a different plug so just swap the wire over
then, at the blue ECU plug, pin 41 goes to the white underdash plug, make sure that the blue/grn wire running from pin 41 going to the white underdash plug makes connection with the blue/grn underdash wire (that is the a/c on signal from your HVAC control panel.
basically this is what happens when your driving your SR and you hit the "A/C" button:-----------------------------
signal from HVAC control panel to pin 41 on ecu, tells ecu to kick up idle, simultaneously, ecu sends signal along green/yellow wire to the a/c relay -- kicking it on, which sends power to the blue/grn wire running in the body harness to the a/c compressor clutch, activating the clutch and making the compressor work."
I hope this helps.