[luober]

if you are not getting any error codes that indicate that there is a problem with the oxygen sensor, how can you tell if you need to change one due to high mileage? are the aftermarket sensors as good as the honda ones?

 

[Dodo]

if you are not getting any error codes that indicate that there is a problem with the oxygen sensor,

Not true, If the ECU throughs a code one, that would indicate an oxygen sensor problem.

how can you tell if you need to change one due to high mileage?

If your engine is running good, there should be no reason to change your oxygen sensor dew to high miles. It doesnt hurt to change them but not nessaury. The way to tell is if one, your ecu is throughing a code, two, your engine preforemce isnt what it use to be. Its normal a noticalbe change.

are the aftermarket sensors as good as the honda ones?

They are. I put a Busch in my old car and it ran fine. Ran me about 50 bucks.

 

[Tiersin]

I thought mine was bad a while ago, so I replaced it. The only thing I noticed was a bit better throttle response.

 

[jfrolang]

if you are not getting any error codes that indicate that there is a problem with the oxygen sensor,

Not true, If the ECU throughs a code one, that would indicate an oxygen sensor problem.

You're reading him wrong Dodo, he's asking "if there's no codes, how do I tell if it needs to be replaced?"

The only thing I can say is check your fuel economy. The ECU will dump more fuel in situations where it doesn't know the air/fuel ratio, which will make your mileage drop. Honestly though, if you don't have any codes you're probably not needing a new O2 sensor.

 

[ZeniceguyCRX]

just change it, its x mass be nice to your car because without it you'ed be walking

 

[coldtotouch]

just change it, its x mass be nice to your car because without it you'ed be walking

I can presently vouch for this statement.

 

[rustycrx]

there is a way to check the o2 sensor with a voltmeter. You can find it on the crx shop manual, which you can download at www.norcalcrx.org. Tell us how it goes.