Hondata

I pulled the input to ecu and output from ecu wires and connected them together. The AC clutch engaged and disengaged off the switch. Maybe the wires are going to the wrong pin on the ECU connector? I think I have the input into E18 and I can't remember the output, I will have to check.

Spunkster wrote:Try it without the VTEC oil pressure disabled.

Tried it with the oil pressure switch enabled, AC compressor clutch did not turn on. I am sure the AC switch is sending the signal so I am going to check to see if the ECU is receiving it. If not then the problem is in the wiring to the ECU.

After reading the text below the check box it says "Note the VTEC Pressure must be disabled. The explanation in the help file says the multiplexer and VTEC pressure check should both be disabled.

http://i615.photobucket.com/albums/tt232/ProcessRacing/hondataac.jpg

So where is the VTEC pressure ...

I am having the exact same problem with my AC system down to a T. Here is my setup:

K20A2 into 94 Integra.
PRC Kpro
Downloaded version 3 of Kpro software.

Settings:
Immobilizer disabled.
Oil pressure switch disabled
Multiplexor disabled
VTP Alternate AC switch input enabled.

I know it is not the ...