The car runs fine, but the code says the egr system has a problem. A mechanic today said it'd be $80 just to see if the valve is working properly. Is there a way I can test it? What is needed to test an electronic EGR valve? Thanks
Just like Roy said, it needs a scan test, but a pro, which cost many thousands of dollars. A cheap scanner won't activate and test the EGR system. The shop invested tens of thousands of $$$ so you need to spend only $80.