Originally Posted by SkyShepherd 
Maybe the problem is not the Calum RT ECU.
Have you verified that the IACV is functioning correctly? If it is not, idle will be erratic and stall-prone until the engine warms enough. Since the IACV allows bypass air to enter the intake (which would affect the A/R value), I would consider this a suspect until ruled out, otherwise you may be just masking the problem.
Darrin
And we have a winner
I checked the IACV and it was not connected properly, after fixing the problem I have around 13.5:1 cold then when it gets warm it goes to 14.7-15:1 ...
Thanks everyone, and at least I know now where are the parameters for cold start, and that they are not really degrees..!
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