Correcting a p043e code on a 2010 Vibe.

Question

Trying to correct a p043e code on a Pontiac Vibe.
Suggestions welcome.
Thanks

Answer 1

P043E Evaporative emission (EVAP) system reference orifice flow insufficient

When this code is set either event happens you have a restriction on the Leak detection pump, if that area is clear and no restriction is found you can be sure the FTP (Fuel Tank Pressure ) sensor is not reporting the true tank pressure.