i sprayed the EGR and lubed it so far code 55 is gone but im still gettin code 56 quad driver B fault. I know that it controls the EGR , TCC, and Evap purge. Im pretty sure my TCC is kickin in and i sprayed the EVAP and didnt get any stumble. But im still not sure about the EGR. Any ideas?
i was just lookin at prices for a EGR valve and i found 2 at advanced auto parts one was for 220$ the other for for 305$ and then i found one at auto zone for 62$. so my question is why is there a huge price gap and is there any brand i should stay away form on these.
Sorry Willwren i didnt think to add to ones of these.