ghunt

Wondering if anyone else has experienced this.

Over the winter I removed my CMDP's (motor & all) and got a Bama tune through AM.

On a cold start in the morning, when temps outside are cooler, the engine bogs really bad below 1500-2000 RPM or so. Above that it's fine, and once you drive it a mile or so, it goes away. It also never does it when outside temperatures are warmer, I've never once noticed it when leaving work even when the car has sat 8+ hours while I was at work. Other than that the car runs great and I'm getting no CEL.

What's causing this, is it just the now wide-open ports and cold engine just being sluggish at startup?

jpplaw

Sounds tune related, probably the MAF transfer. More air is getting into the cylinders and the cooler temps exacerbate it a little bit to the point where it bogs a hair lean.

Dino Dino Bambino

What he said.

AMAlexLazarus

Hey - Sorry to hear about the trouble here. It's sounding like this could be tune related as this is only occurring on cold start and it's likely in relation to a table that's associated with coolant temp. Please shoot the Bama Team a call and they'll work with you to have this sorted.

Alex

ghunt

I will have to do that.

It seems like the temp threshold is around 70 degrees- the last couple days I have left for work and the the temp was above 70 in the morning, and it ran fine. Kinda weird.