[Jacksmart123]

Hi lads, it’s about 3 degrees here in north east uk on mornings at the moment, I’m having cold start issues with missfire until warm etc. Getting a code for rich running constantly, my MAF is reading 47F first thing before even staring the car according to intake temp and coolant temp 50F surely this is wrong? Cheers

[desertman123]

This is a complete guess but,

Maybe that's the low end of what the sensors will read? Since at operating temp theyll both be closer to 100°F + (coolant hangs out between 80-110°C)

No sense in worrying about 50°F if the temp will be like 200°F any time the car is actually used.

[hassmaschine]

no, the sensors can definitely read lower temperatures than 50f. That would be a really terrible design. IIRC they typically go down to -40c/f.

I bet your MAF is bad.

[Jacksmart123]

I’ll change it see if it helps, surely 47F isn’t right when not even started, the coolant gets up to 200+ which is correct and maf was at 70F sure it’s readbg bad. Will let you know how I get on thank you

[Jacksmart123]

And it’s causing it to run rich im sure, by giving the eco the wrong temp