Hey guys! I had been having trouble with my car having a low idle and asked you guys for some help a while back. I've had many suggestions on what it could be to fix it but none of them were working so I bought myself a nice $30 code reader and pulled the codes, 327 C (EGR valve position circuit below minimum voltage) and 558 O (EGR valve regulator solenoid circuit fault). Can anyone tell me where this would be in the engine bay? Thanks -Nathan D.