extending o2 sensor

[dbug454]

ok so whats the right way to extend the o2 sensor wire? from what i have seen u dont use copper wire. im low on chash so i have to make it my self if i can

[Tw34k]

Whats wrong with copper wire?

[deevergote]

There really is no right way to extend it. Get a sensor made to reach (F22A1 sensors reach to the front of the manifold, F22A4 and F22A6 sensors are lower, on the "downpipe")
Splicing the wire may result in a change in resistance, causing improper operation.

If you feel you HAVE to splice, cut the wires on the sensor, NOT the wires on your car's harness. Use quality well-shielded copper wire of the same gauge, and carefully splice it on. Solder and shrink wrap the connection.
Another method would be to go to a junkyard and create your own sub-harness as an extension. That's probably how I would do it, personally... of course, I'd rather just drop the $35 to get a new o2 sensor that was made to fit from RockAuto.com.

[Oreellyfool]

There really is no right way to extend it. Get a sensor made to reach (F22A1 sensors reach to the front of the manifold, F22A4 and F22A6 sensors are lower, on the "downpipe")
Splicing the wire may result in a change in resistance, causing improper operation.

If you feel you HAVE to splice, cut the wires on the sensor, NOT the wires on your car's harness. Use quality well-shielded copper wire of the same gauge, and carefully splice it on. Solder and shrink wrap the connection.
Another method would be to go to a junkyard and create your own sub-harness as an extension. That's probably how I would do it, personally... of course, I'd rather just drop the $35 to get a new o2 sensor that was made to fit from RockAuto.com.

FYI - An adapter extension is a good idea because the lx/dx accords have the reverse plugs of the ex/se(i believe all years but I could be wrong there). Meaning if you have a 90lx and you try to stick a 93ex sensor on it, you cannot plug them into each other without splicing because the plugs are the same instead of opposite (if that makes sense).

What I did when I did my h22 swap in my 90lx, was remove the covering from the section of wires that ran from my main loom to the front mounted O2 sensor/temp sensor and such. Then just pulled back my o2 wires and re-routed them to the back of the motor for a downpipe o2 mount. Then I recovered my wires with electrical tape. By doing this I can use either plug without having a long extension/adapter (and it looks a little cleaner)

[wtfisafleek]

Does anyone know what extension length one might need going from an A1 manifold to the A4/6 and it's downpipe? Trying to get it ordered before my exhaust gets here.

[Jarrett]

What the previous poster mentioned about the O2 wires is actually the best method as it involves no cutting of the sensitive, shielded cable. Follow the loom at your manifold-mounted O2 sensor as far back as you can before it merges with a larger section of the harness. Pull some tape off of that location and split the loom to start pulling out the wires that go to your O2 sensor to get further back toward the firewall. The idea is that you will create all of this excess that can be easily tied up, tucked into a loom and tucked away only to have your O2 wires branch off of the main harness at a location more suitable to the F22A4/6 or H22A engines.

[wtfisafleek]

Ah I get it now. That's my kind of mod...free.