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Here is the deal.. the a/c worked flawlessly before my LX9 swap. Now, after the swap the compressor will not kick on.
Everything is wired the same. The compressor was unbolted from the dohc bracket and just pushed aside during the swap work. So, in other words, it was never disconnected, evacuated etc.
While the engine was out I replaced the power steering rack (leaking) for a different used unit. The new one didn't have a p/s pressure switch or the accomdations for one that I could see. So I installed it and left the p/s pressure switch unplugged. Could this be my problem? Thinking it could be, I started the car and turned the a/c controls to Max (which should have kicked on the compressor). Then I used a paper clip to connect the two wires, this simulated high power steering effort and the idle instantly kicked up as I expected. Removed the paperclip and the idle drops to normal idle speed. Can the ecm be confused by never having input from the p/s pressure switch and refuse to turn the a/c on since it doesn't know the status of the p/s pressure and won't risk an idle speed stall? If I recall correctly, years ago I had that connect pulled from the steering rack and the a/c didnt work. PLugged it back in, and a/c worked. Just not sure what role (if any) it plays in a/c operation and how I would skirt around it since my steering rack doesnt have the accomadations for the pressure switch.
Not sure what else I should be checked - at least electrically. As far as I know there are 3 connectors involved - they are the connector on the compressor that engages the clutch. And then a high pressure/low pressure switch. Is there anything else I am missing? Could the ecm be not allowing the command?
I also get code 39 after about 15 minutes of driving - the error code for the clutch switch (it is a manual trans car). Can this be an issue? I am not sure why I get this code either. As far as I know the clutch switch is located by the clutch pedal and that was not touched or altered during the swap.
Everything is wired the same. The compressor was unbolted from the dohc bracket and just pushed aside during the swap work. So, in other words, it was never disconnected, evacuated etc.
While the engine was out I replaced the power steering rack (leaking) for a different used unit. The new one didn't have a p/s pressure switch or the accomdations for one that I could see. So I installed it and left the p/s pressure switch unplugged. Could this be my problem? Thinking it could be, I started the car and turned the a/c controls to Max (which should have kicked on the compressor). Then I used a paper clip to connect the two wires, this simulated high power steering effort and the idle instantly kicked up as I expected. Removed the paperclip and the idle drops to normal idle speed. Can the ecm be confused by never having input from the p/s pressure switch and refuse to turn the a/c on since it doesn't know the status of the p/s pressure and won't risk an idle speed stall? If I recall correctly, years ago I had that connect pulled from the steering rack and the a/c didnt work. PLugged it back in, and a/c worked. Just not sure what role (if any) it plays in a/c operation and how I would skirt around it since my steering rack doesnt have the accomadations for the pressure switch.
Not sure what else I should be checked - at least electrically. As far as I know there are 3 connectors involved - they are the connector on the compressor that engages the clutch. And then a high pressure/low pressure switch. Is there anything else I am missing? Could the ecm be not allowing the command?
I also get code 39 after about 15 minutes of driving - the error code for the clutch switch (it is a manual trans car). Can this be an issue? I am not sure why I get this code either. As far as I know the clutch switch is located by the clutch pedal and that was not touched or altered during the swap.
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