O2 Sensors

[Skitter302]

I had some one share a theory with me that O² sensors in the exhaust should be replaced every 50,000 miles. The reason is that the sensor builds up with carbon and after a while doesn't read as accurately as when it wasn't full of carbon.

Now I thought this idea was kinda BS because I feel that the Error code light would come on if the sensor provided inaccurate readings. But given that ethanol laced fuel loves to reek havoc on our beloved Bronco's I feel that their might be some truth to this theory.

So I guess the question is... Replace the sensor because it could be full of carbon? or... Don't worry 'bout it because the Bronco runs just fine in.

 

[Seabronc]

Well, for other than general maintenance I stick to the, "if it ain't broke don't fix it", theory.  It might be worth puling to check the condition of the sensor but the computer should be able to sort out if the sensor is bad or not.  If it is running out of range, you will get a code from the computer along with the "check engine" light.

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[Skitter302]

What I'll do then is when the sun comes back out I'll crawl under and spray the sensor with a cleaner to see if that makes any difference. (Most likley not :meh: but what can I hurt?)