2000 Hyundai Sonata Q&A
2000 Hyundai Sonata Question: emissions failed need all sensors
al l sensors failed emissions check engine light on over 400.00 dollars to repair - Visitor
There are many reasons a check engine light can come on, if you could post the codes that were stored, we could assist you better. There are also many sensors too, so more information is needed to help you. - Bret Bodas
I think you mean monitors? anyway, what are you being charged for? Roy - mastertech6371
My '04 Sonata fails emissions due to the readiness monitors, specifically the catalyst and the oxygen sensor. It has failed 6 or 7 tests over 3 1/2 months and 4,000 miles of mostly highway driving....