1998 Mercury Mystique Repair Question
Topics covered: Check engine light, Egr valve, Engine.
Mileage: 90,000 miles.
Mileage: 90,000 miles.
Asked on December 2, 2011
How to test the (DPFE) and (EGV) solnoid parts on 1998 mercury mystique 2.5, V6 and where is the manifold port that needs to be clean out. Do I have to remove the manifold.
I can't find a diagram for this cars egr route any where,I would like to know what it looks like so I can do tests from A to B. In other words,where do the hoses come from that attach to DPFE and soforth.When this gets all figured out,how do I rest,so the check engine light won't come back on. I'm getting P0401 code so I wont to go through eveything and make sure my(DPFE) and(EGV)soleniod are good also. I know how to check egr valve. THANKS AGAIN!
Asked by RonskiAnswer
Replied on December 2, 2011
the dpfe is checked through a scan tool. it has a voltage change based upon load changes.
a bad cat can cause a dpfe failure as well from excessive back pressure. these checks are best left to a shop familiar with these types of repairs.
Roy
