2 Qs: High RPMs + Water in Passenger Side

[85VicWagonGuy]

1998 Deville
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1) Why is my 98 Deville randomly idling at 1300-1400rpm?
- turn it off for 5 seconds or 5 hours, maybe it will continue.. maybe not.

CODES:
PCM P0122, P1122
IPC B1552
PZM B0533

2) Why did water start to pour into the front passenger side footwell this week?
- seems to be a/c condensation

Thanks.