Originally Posted by TimmyB
Whats an IAV valve? When I start my WK the rpm's are high, around the 1k mark. Then after just sitting there on lunch break it goes down to about 500rpm and stays, idle seems to be fine but once in awhile it will drop below that and appear rough for a minute or two then go up again. Im not concerned really and prob think its normal, but if there's something I can clean to help it i'd do it. I do have the K&N CAI and people have told me the oiled filters can screw up the intake parts from the oil being sucked in, but im very careful to only add enough oil on the filter during cleaning so its not sloppy soaked with the oil, if anything I dont put enough on.
I have a can of Gumout air intake and throttle body cleaner, would it be good to remove the intake tube and spray some into the TB?
Idle Air Control valve. it's plugged into your TB, should be the right hand side. It tends to get gunked up with oil and so on, so it should be cleaned, and in the long run replaced over time.
the K&N thing applies mostly to MAF systems, in other words, that's a non-issue for you.
TB cleaning is a good idea to do occasionally but you have to remove the IAC from the TB to clean it.