Throwing a 43 from the check engine light which as I've read is hondaese for replace your O2 sensor. The car just hit 120k on a F22A6 engine and I was wondering two things. The CEL only comes on after being on the freeway for about 5-6 minutes and it's always the 43 code.

Could it be anything else other then the O2 sensor or is that the only culprit.

Also having problems locating the sensor itself, I pulled off the heatshield today to see if I could find it from the schematics I've seen on these forums and other ones but I didn't see it.

Thanks in advance.

 

It normally would be under the car inside the exhaust pipe just before the catalytic converter.

 

^Yes. And the other should be on the lower front of your exhaust manifold. It's really odd that it isn't there.

 

Thanks, I found both of them. Now the fun begins..

 

If you're taking one or both out, I would recommend picking up one of these from the parts store:



It's an 02 sensor socket. The slot is for the wires. It's a ton easier getting them out.

Hit it with some freeze-off junk a couple hours ahead of time, too.