Civic VX (CA) oxygen sensor question?
 

Hello guys and girls of Gassavers, I just have a question concerning my 92 civic vx (CA model) oxygen sensor. When I purchased my vx 3 months ago, I was planning on converting it into the FED model. Well I was suprised to find out that the O2 sensor was already a 5wires sensor. I know that the CA vx only require a 4wires O2 sensors. Did the 92 CA vx come with the 5wires O2 sensor and require a 5wires O2 sensor? I've looked it up on ebay and I still can't find a O2 sensor for a 92 CV vx. Ebay only carry the O2 sensor for the 93-95 CA vx and it's a 4wires sensor.

The 92 CA model did come with the 5 wire, you can get a P07-A00 or A01 Federal ECU plug it in a away you'll go!

If I want to keep it in the CA version, can I just replace it with a 93-95 4wires O2 sensor? It seems that the 92 may have a different plug for the O2 wiring (5wires) and the 93-95 may have a 4wires plug. Can I just depin the the 92-95 4wires O2 sensor wiring into the 5wires (92) plug. There's no point in buying the expensive L1h1 sensor if I'm just going to keep it in CA mode and use the CA ECU.

Plenty of 92 CA model VXs have been upgraded to the FEd version and still passed emissions with no problem though. I say if you have the wideband already and want better mileage, the P07-A00/A01 upgrade is well worth it.

If you really want to go to a 4-wire then you'd need the P07-L01 and then need to get the 4-wire connector and splice it into your engine wire harness. I'm no expert on the swap but I believe it involves re-pinning two pins on the ECu as well. A lot more hassle if you ask me.

There are places that sell the L1H1 for $90 and for $180. If you end up getting the A00/A01 ECU and a new L1H1 it will pay off itself in a couple years easy with the better gas mileage, plus it will be a lot less work on your part.

Thanks, I guess if I want to keep it in CA mode than I might just have to go that route.