Rough idle and jerky accel (CEL P0172) after recall PCM replacement. CAI to blame?

[headcold]

Hi,I got a letter about the PCM in my 08 Vibe being recalled and needing to be replaced. I took it to a GM dealership where they replaced and reprogrammed the PCM and sent me on my way.I was getting jerky acceleration and sometimes rough idling and now the CEL is on. I took it back and they said that they pulled code P0172, system too rich.They blame it on the cold air intake I've had installed for over 2 years now. They (naturally) suggest that I take it out and reinstall the factory breather.A common fix for P0172 is to clean the MAF, so I'll try that.I forget what it was like when I first put the CAI in. Will the car relearn how to operate with a CAI in place?

[Salsa Guy]

How soon after getting the PCM replaced did this start to happen? On the CAI I would suspect it would too lean instead of rich (ofcourse the ECU will figure it out). Keep us posted.

[circuitsmith]

Do you use an oiled air filter?That can foul the MAF if over-oiled.

[headcold]

I live about a half mile from the dealership, so I didn't notice much on the drive home, but the next day I noticed the jerkiness and rough idling, so I'd say that it happened more or less immediately after the PCM replacement.I do use an oiled filter. I oiled it maybe 6 months ago, though. The only thing that changed from last week to this week is the PCM getting replaced.