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97 EX Civic
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61 Posts
Discussion Starter #1
my check engine light is on. I used my high schools obdII machine to check to see what is the problem.

It comes up as
o2s htr Bank 1 Circuit 1

It is not affecting my car that I can notice but I jus want to get it fixed
 

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4,363 Posts
it means your o2 sensor is bad. probably the first one closest to the engine. Replace it and call it a day. You'll probably have really crappy fuel mileage until you fix it.
 
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