Today while driving the car is acting differently (the only change was a cleaning of the EGR valve)
Current Fault Log
P0507: Idle Control System RPM Higher Than Expected
Pending Fault Log
P0171: System too Lean (Bank 1)
P0174: System too Lean (Bank 2)
The P0507 error code keeps popping up (note that the car does not appear to be idling too fast, must be some other reason triggering that code)
One note, in all my mode $06 error test I have never seen the EVAP tests come back with any values. Is this normal for GM or is there a way for me to test this. I do know that just before this all happened the canister purge valve broke and was replaced. The hose to it appears fine…