Changed my air filter, but then.....
Started the car a few hours later. Fired up, died within a few seconds. Crank, fire, die again. After the third time, I checked that the MAF plug was in check, and it was all good.
Start again, fired up and kept running. She stutter a few times, but seemed fine. I drove for a few minutes, noticing some more stuttering.
I pulled over and did a scan for codes. No codes, but the wrench light was on. After a 30 minute drive, throttle response felt off and manual shift mode for the trans was disabled.
An hour of sitting later, she fires up, no wrench light, manual shift mode is working, and she drives like she used to.
Wierd.