Pre-heater for the O2 sensor and in 95% of the cases (or more) it's totally not a factor, ignore it.

I have the same code, although my air temps are a tad bit higher than most folks....

Sent from my SM-A528B using Tapatalk

__________________
"When the Team Chief said.... You're trapped in a hole with nothing but a goat and a slinky, what do you do? Stubby said, I'm not sure but it won't end well for the goat...." ~(Overheard) Last day, Phase 3, Q Course