emissions failed need all sensors on 2000 Hyundai Sonata

l sensors failed emissions check engine light on over
400.00 dollars to repair

Asked by for the 2000 Hyundai Sonata
I think you mean monitors? anyway, what are you being charged for?

1 more answer
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.