Cold Start Hunting...

[Suprafied]

Hi,

I have been trying to resolve this with just adjusting the idle mass feed forward percentage vs. coolant temp.

It appears that the car still hunts till about 100F. The system is maxed out for feed at start up (100%) and then scaled accordingly to about 70%.

Is there anything that can be done to improve this?

DP

[stevieturbo]

you'd need to do some logging and research into why it is doing it before you can attempt to fix it

It could be basic mapping, cold running enrichments, timing, idle control etc etc or a combination of them all. And closed loop corrections rarely help with such problems, often they can contribute if not set up correctly