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Eric
Eric, Automotive Repair Shop Manager
Category: Honda
Satisfied Customers: 29979
Experience:  20+ yrs. experience as repair shop manager and technician.
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Got a 04 civic ac not working. when I had the single cam 1.7

Customer Question

Got a 04 civic ac not working. when I had the single cam 1.7 single cam in it it worked great no problems at all then I put a k20 motor in out of a Rsx it does not work now the only thing I changed was the ecu and had to do some rewiring at the c101 plug not sure if I move a wire on the c101 plug in the wrong place but other then that the car runs fine please help
Submitted: 1 year ago.
Category: Honda
Expert:  Eric replied 1 year ago.
HI,
I am sorry that you have not been helped yet. I just came online and saw your question
Is this the compressor from your vehicle or the one that came with the other engine
If the one that came with the other engine, do you know that it is good
If not, first thing you need to do is jumper the compressor directly with 12v to make sure the clutch engages.
If not, you need a new compressor. If it does, then with it jumpered, try adding refrigerant and see if after adding it, it will run on its own by the connector
If not, then we will get into the wiring
Customer: replied 1 year ago.
I have tried that and the clutch does kick on w 12 v I really do think it's something w wiring but don't know where to start
Customer: replied 1 year ago.
I meant to tell u the compressor I am using is the 1 from the Rsx k20a3
Expert:  Eric replied 1 year ago.
HI,
Do you know that the ac system was recharged with correct amount after engine swap?
If it was, then it is a wiring issue. If not sure, we need to check the pressures before going further
Customer: replied 1 year ago.
I put in a 18 oz can and that should of been enough to kick on the compressor and it didn't kick in or turn on fan
Expert:  Eric replied 1 year ago.

HI,

Ok, here is the c101 pinout so you can check to see if you got a color one mixed up

Expert:  Eric replied 1 year ago.

HI,

Ok, here is the c101 pinout so you can check to see if you got a color one mixed up

Customer: replied 1 year ago.
This is wh at I did
Customer: replied 1 year ago.
Let me know if u see any thing wrong with this
Customer: replied 1 year ago.
This is what I did on the compressor wire
Expert:  Eric replied 1 year ago.
HI,
I dont see any issue with the c101 connector. I need to pull up the ac schematics and check the compressor wiring as that may be the issue
Customer: replied 1 year ago.
Ok sounds good
Expert:  Eric replied 1 year ago.
Hi,
Ok, I show yours to have a red wire, a blue with white stripe wire, and a blue with red striped wire.
Tell me how you have the connected at the compressor
Customer: replied 1 year ago.
B/r together with red and the ac plug b/w
Customer: replied 1 year ago.
Here's a pic of it
Expert:  Eric replied 1 year ago.
HI,
Ok, you have the blues wrong.
The blue w/red should go to the plug and the blue with white should tie in to the red wire.
The blue w/red is the power feed from the compressor relay so it goes to the compressor
Customer: replied 1 year ago.
Ok gonna try it
Expert:  Eric replied 1 year ago.
HI,
Sounds good
Customer: replied 1 year ago.
Just did that and still no luck and check pressure and still has pressure
Expert:  Eric replied 1 year ago.
Hi,
is the ac light coming on in the dash when you push it.
Customer: replied 1 year ago.
The ac bot***** *****ght is working on and off
Expert:  Eric replied 1 year ago.
HI,
I am stumped at this point. It should work. Let me opt out and see if another expert sees something I am missing
Customer: replied 1 year ago.
Ok I really need this ac to work cause I am getting ready to move to Las Vegas and it's still hot over their
Customer: replied 1 year ago.
How much longer till some 1 contact me
Customer: replied 1 year ago.
What is going on here ?