Hey guys. My check engine light came on about a week ago so I went to Advance Auto and had it checked out. They told me it was insufficient EGR flow. They told me that i needed to change the EGR valve. I went ahead and picked the part up while I was there (amazing they had it in stock) so it would save me a trip later. Then i came home and started looking on CEG to make sure that is what should be done to fix the CEL. After quite a long time searching, I am finding that there are about 5 or 6 other things that i could be. I am lost! What should I do first to save myself a lot of time and money? Thanks guys for all your help in advance. BTW, 99 V6 ATX
