Check engine light comes on while driving?
it’s okay to do that if it goes off you will need to replace the part,do you have an Auto Zone by you,they can test it for by plugging in the code finder. otherwise you can test it yourself by putting in your key and turniung the key foward and count how many times the service engine light blinks,they blink in a code ,but you would have to plug in the egr again to get the light to come back on. there are codes on www.autozone.
