Quote:
Originally Posted by bcredliner
I think you are right not to consider the emission test
O2 sensors, especially the pre cat sensors, should be replaced at 60-70,000 miles to assure your mileage and/or performance doesn't take a hit. I still think you should have them tested before purchasing sensors but even before they go bad the performance declines and can be an intermittent or continuous decline to point of failure.
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Okay I may just change them as you suggested
Are the pre cat sensors and connectors easy to get to?
Is it ok to use ngk/ntk replacement sensors?
Is is possible a faulty sensor could create a code 26 or 29 fuel trim limit reached scenario?
Cheers