Quote:
Originally Posted by dbs600
Could a bad O2 sensor cause the spark plugs, injectors or air filters to get dirty?
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Absolutely. O2 sensor helps the computer determine the right air and fuel mixture. When it goes bad, it is not sending the right voltage to the computer causing an incorrect air/fuel mixtures. This could mean a rich/lean fuel/air mixture = worst fuel econ, fouled spark plugs, carbon build up, fouled CAT convertor.
A bad O2 sensor doesn't damage the air filter.
You can have your dealer check them. There's a way for them to check the voltage output on them.