Question about 1993 Isuzu Rodeo

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O2 sensor I replaced the O2 sensor but the light on the dash board is still. A mechanic told me to drive it for about 75 to 100 miles and it should go off. I drove it for 200 miles and it is still on. What else should I check or replace.

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  • Anonymous Mar 31, 2009

    I replaced the o2 sensor and the light will not go off.

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There should be a reset switch that turns the light off. Some vehicles require a code scanner tool to reset the check engine light. On some Isuzu models you have to remove the instrument cluster and move a screw from one hole marked KSW to another hole with the same KSW marking (it may have tape over the second screw hole). Other Isuzu models may have a small switch on teh back of the instrument cluster or may have a different marking on the screw holes (some were marked wit the letter B on both holes). The O2 light usually comes on at 90,000 mile increments which is when Isuzu recommends changing it.

Posted on Jun 12, 2008

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