CASilForty
07-08-2010, 09:08 PM
89 KA24E chassis with 95 KA24DE and ECU. My Silvia as shown in my pic <<<<
The AC System has been converted from old skool to r134 with custom compressor line mods and updated r134 compressor, fully evapped and charged professionally. Thing is when the AC is turned on the light doesnt light, and the compressor only initializes for bout 5 seconds and then shuts off. It blows cool air but its not nearly AC crispy as its not properly circulating the freon! I'm told there is another constant feed wire to the AC to up the voltage forcing the compressor power relay to stay open?? is this right? Anyway thats what I'm told is the prob. We dont seem to know which wire it is from the 95 ECU to the AC compressor, Any s13 AC refit gurus out there? Are we on the right track? lol
Update: Nope it turns out the whole 2nd wire scenario is a red herring. I'm now told by a higher authority, this is not a wiring issue it is a pressure issue, see below.........
The AC System has been converted from old skool to r134 with custom compressor line mods and updated r134 compressor, fully evapped and charged professionally. Thing is when the AC is turned on the light doesnt light, and the compressor only initializes for bout 5 seconds and then shuts off. It blows cool air but its not nearly AC crispy as its not properly circulating the freon! I'm told there is another constant feed wire to the AC to up the voltage forcing the compressor power relay to stay open?? is this right? Anyway thats what I'm told is the prob. We dont seem to know which wire it is from the 95 ECU to the AC compressor, Any s13 AC refit gurus out there? Are we on the right track? lol
Update: Nope it turns out the whole 2nd wire scenario is a red herring. I'm now told by a higher authority, this is not a wiring issue it is a pressure issue, see below.........