I recently pulled up two codes on my 05 evo 8.
the codes were p0172 and p0172pd I know the codes are system running to rich im just confused of the same code with the "pd" symbol does anyone know what this code is? N what can I do to get rid of these codes

 

Only time I ever had that code it was a boost leak at the J Pipe.

 

No idea about the code with the pd

 

PD usually means a OBDII code is pending