Rep Power: 0

I have an 04 civic and there are several wires that run along the inside of the radiator. Two lead to the O2 sensors, up/down stream. There is another one that splits midway. One split runs to the evap canister, the other runs to the ac compressor. At some point I think these wires fell along the exhaust manifold and melted. Now there is some exposed wire. I haven't been able to find a part number or anything, but I am looking for a replacement for these sections of wiring. I could wire it myself, but there is an intermediate connector between this stage of wiring and the one that leads to the ac compressor. This leads me to believe that there may be a replacement part.

I also have two codes, P0420 and P1447. I suspect the faulty wiring to the evap canister is causing both of these. Exhaust system is less than a year old so I know the cat isn't bad and causing the 420.

Any help is appreciated.

 
Rep Power: 0

Easiest bet is to go to a local u-pull yard, and remove the section of harness you need, from a donor vehicle.

 
Rep Power: 222

Do this, and if it's an aftermarket cat it might be throwing a p0420 code after a year, Honda's are pretty sensitive

 
Rep Power: 224

There is no evap canister under the hood. That fault is likely unrelated.

An O2 sensor defouler will mask the P0420 fault. Assuming you don't have emissions testing where you're located.

 
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Hmm, then what component is that wiring running to? It looked like an evap canister, but I didn't look it up obviously.

We don't have emissions no.

 
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Also, I was mistaken originally, the code was P1457 not P1447.

 
Rep Power: 224

It's close to the radiator? Picture? There is the A/C dryer mounted on the driver side. Two hard tubes running in the top, one sensor as well.

P1457 is an evap related fault code. On the canister side, as opposed to the fuel tank side.

 
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It is on the driver side, below the power steering pump. Near the bottom of the radiator.

I haven't had AC since I got the car. Hard lines over the top of the timing cover aren't connected to anything.

 
Rep Power: 224

Look like this? Except mounted vertically. Should be two A/C lines on top but they could have been removed. One connector you can see as well.

 
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Yup, thats the one.

 
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This is the section of wiring. Considering both parts are connected to ac components I suspect I don't need them with the lines disconnected. When they ground out on each other I'm guessing the compressor clutch engages on and off, which explains some of the surging I get at idle. It doesn't happen if I keep them separated. I taped them up with electrical tape.

Where is the EVAP canister located on this vehicle, in order to address the 1457?

 
Rep Power: 224

In the back near the fuel tank. EVAP faults are usually a pain to troubleshoot. Take a look under there for chewed up wiring. Otherwise, at a minimum you will need a handheld vacuum pump/gauge and some electrical know-how.

 
Rep Power: 0

I'll take a look. I just finished rebuilding a steering gearbox on my other vehicle. Electrical issues are welcome by contrast to that.