[z00m]

I got these 8 cel codes too when my IAC valve was sitting on the ground couple of days ago ;-)

I started the car while the IAC valve was out, and sprayed a bit more cleaner into the mounting cavity while it was idling rough and loud.

If a cleaning won't fix your problem (after making sure all electrical connections are good and secure), it's most likely the IAC valve itself is no good (as in my case, not even attached).

 

[z00m]

>> after installing the IACV, no issues?

Everything ran fine since.

I took it off for cleaning. It was very hard to start, and idled at less than half the speed. Also triggered P0506 code. I started car while the valve was out, thus all the codes.