I am self-tuned (if thats what you would call it) and I am having some minor idle problems when I turn on the AC. Basically it is moderatley unstable almost to the point that it stalls sometimes. So I am wondering what I need to do to fix this?

Disclaimer:
As always my super-duper-uber flame suit is donned and it is completely impervious to any flame throwing

 

I have not had that specific problem, but there is a table for idle with AC on. Maybe give it a bump and see what happens.

 

Thanks I'll have to try that out. I didnt remember seeing anything specific for ac, but i am half blind.
Thanks again
Mike

 

You need to add this XML to your .XML file for proper idle control on the 9, this is for 88590015:

<table name="Actual Desired Idle RPM" category="Idle" address="3d24" type="2D" scaling="RPM8">
<table name="Engine Temp" address="70c2" type="Y Axis" elements="8" scaling="Temp"/>
</table>

<table name="Idle RPM AC" category="Idle" address="146c" type="2D" level="1" scaling="RPMTarget">
<table name="Conditions" type="Static Y Axis" elements="4">
<data>Idle RPM Neutral AC OFF</data>
<data>Idle RPM Drive AC OFF</data>
<data>Idle RPM Neutral AC ON</data>
<data>Idle RPM Drive AC ON</data>
</table>
</table>


Also, since you have the larger injectors I would make sure the latencies are correct for the voltage the car dips down to when the AC engages.