Hey guys, been dealing with the P0455 and P0457 codes for a few months now and came across this post doing research. Right now I can clear the codes and they come back on after 100 miles of driving. Had someone mention the purge valve so I started searching and found this.
I followed the test procedure detailed on page 2, and I'm not getting suction with or without the electrical connector in place. When I pull the yellow clip on the manifold, I am getting lots of suction, so does that mean the purge valve is bad?
2013 Taurus SHO.