Check engine light

[mshaw]

I have a 1989 full sized 351 bronco. Occasionally after running the 'Check engine' light comes on while idling at an intersection. Sometimes it continues to stay lite but it usually turns off after accelerating a bit. Does this indicate an oxygen sensor failure?

[Austin8214]

Originally Posted by mshaw

I have a 1989 full sized 351 bronco. Occasionally after running the 'Check engine' light comes on while idling at an intersection. Sometimes it continues to stay lite but it usually turns off after accelerating a bit. Does this indicate an oxygen sensor failure?

It could be an o2 sensor but it would be best to have the computer scanned for codes. Auto Zone will scan your car for free.