Tried to change my plugs this morning, but it was hot and I couldn't rotate the engine forward enough. During the work, I removed my K&N filter hoping that would give me some more rotation. It didn't give much, so I decided to call it a day. Anyway, when I took the car out, SES light was on, and it's throwing wo codes - P0102 and P0443. My filter does need to be cleaned, and I've replaced the MAF once with a junkyard one, so that's what may be throwing the P0102 code. But I have no idea what I hit or bumped that would throw the P0443. The car runs fine, but I did see when I was coasting that the tach would bounce between 1200-1800 RPMs. Could replacing the MAF fix the P0443 code as well? I've also seen that P0443 is thrown when there's a bad connection the on PCM. So maybe I jostled something there?
DTC P0102 Mass Air Flow (MAF) Sensor Circuit Low Frequency
DTC P0443 EVAP Purge Solenoid Valve 1 Control CKT