Trouble code P0506 means:Idle control system RPM lower than expected
Trouble code P0506 means: Idle control system, rpm lower then expected
Trouble code P0506 means: Idle control system, rpm lower then expected
the 1028 is trouble code for thermostat low temp check temp gauge for low temp replace thermostat
Trouble code P0506 means:Idle control system RPM lower than expected
Trouble code P1507 means: Idle Air Control Underspeed Error (see P0506) Trouble code P0506 means: Idle Air Control System RPM Lower Than Expected Replace the Idle Air Sensor
Trouble code P0506 means:Idle control system RPM lower than expected
P0506 Idle Air Control System RPM Lower Than Expected
Trouble code P0506 means: Idle Air Control System RPM Lower Than Expected
Trouble code P0440 means:Evaporative emission control system malfunction
Engine coolant Sensor is bad. I have the same error on my 2005.
2004 gmc envoy with code p0128
Random Misfire.