Click the buy parts tab above.
I beleive you are looking for a transducer? Same one controls the EGR, its mounted on the firewall next to the intake manifold; you can swap the two of them to confirm if that is where the fault is occuring.
Buy a $50-80 OBDII scanner for yourself. $200 is ridiculous. Purchasing one is the best insurance that you wont need it.....
