ubermojo

2004 FXT. rough idle, RPMs want to climb from 500 up to about 1500RPM. press gas and RPM drops to just about stall but recovers and starts to climb again. Had plugs changed last week along with valve gaskets, ran for about 300 miles then started to idle very rough when I was driving. Checked and attempted to clean MAF sensor. Got 4 codes:

p0102-MAF sensor

p0021-Camshaft position actuator A Bank 2 timing over advanced (fixed this, good info on scoobymods (http://www.scoobymods.com/forums/sho...0301#post20301)

p0113-Intake air sensor high input; pretty sure related to MAF. I think it registers both temp and flow.

p0037- rear O2 which I was aware of

At this point Im pretty sure its the MAF but have also come across a bunch of info about IACV. Curious with no code leading to that if that could be a possibility.