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I have 78,000 miles on the truck. I've reset the ECU and it came back with the same code. Bank 1 sensor 2 is pretty dang expensive.
The cat doesn't look like its been changed. I'm gonna test the o2 sensor with my multimeter this weekend to see if that's really the problem. Do you know if I can pass emissions with that o2 sensor malfunction?
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In my experience... 80K is about right for the front at least. If you still have problems, then replace the rear.
Yes, it is a lot of money...
You can try this:
With the truck cool in the morning, look under there and find the o2's, clean them with a damp towel with water only, often times I am told that just dirt clogging the air passage can trip a code. if it looks dirty that may solve the problem. It, if coated with oil, is likely dead. Oil will kill them.
Whatever you do, if they do go out, get the codes reset with the ob2 reader or you may have more problems.
In my experience, usually within about
5-10 miles after installing a new one, the light will go out on its own... sometimes it will take about 70 miles and sometimes 200 miles, but you don't wan't to wait... get it reset asap.
And no, if the cel is lit, it won't pass.
I have a problem that mine keeps throwing a p0420 cat below threshold...
Tacomas seem to have a lot of problems here from the people I know. Mine is like a nightmare, I hope yours is not.
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