Engine fault codes after reconnecting battery

[peachfuzz14]

So I was screwing around with my seat recently to fix a power seat gear. After I finished everything up, I reconnected the battery and checked the SRS codes with the peake to make sure everything was cool. It was fine, no codes. While I was in there I checked for any engine fault codes when I was in there just for good measure, and it returned like 15 different ones? wtf? :confused I know it was fine two weeks back, as I checked them after the last auto-x I ran. The car has been sitting idle since my driver's seat was broken. Anyways, I wrote them all down (haven't had a chance to translate them all) cleared out the codes, went for a test drive, came back and they were still cleared.

Has this ever happened to anyone before?

[peachfuzz14]

So here's the list of codes I pulled...I haven't seen any more since I cleared it earlier...

Crazy list...

16 – Table 16 aka table 11
0C – Throttle position sensor
53 – crankshaft sensor
23 – secondary air system relay/pump
4F – after cat oxygen sensor heater, cyl 1-3
44 – evap system, purge control valve ckt
37 – precat oxygen sensor heater, cyl 4-6
15 – VANOS (solenoid)
18 – Fuel injector Cyl #4
17 – Fuel injector Cyl #6
1B – Idle speed actuator (close)

Sounds and feels fine, I am thinking if they were real I'd have some serious drivability issues. Any thoughts?