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Spark Table Switching for Idle -- Question for Brain

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Old Feb 15, 2011 | 02:48 PM
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Default Spark Table Switching for Idle -- Question for Brain

Brain, looking at doing the spark table switching to handle idling AC load. Curious whether you are running in Closed Loop or Warmup mode?
Old Feb 15, 2011 | 03:07 PM
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I use Spark Table Switching with A/C activation and Closed Loop Idle Control.

I have my spark map advanced at idle and retarded 1-2° throughout, when the A/C is running.






The ground to my A/C Switch is tied into JS5, which triggers the event. It also triggers my A/c Idle Up Activation.

Last edited by Braineack; Feb 15, 2011 at 03:19 PM.
Old Feb 15, 2011 | 04:08 PM
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Very nice. Thanks.

I really like this option because the A/C clutch signal is already in the ECU harness -- minimal wire surgery. Plus, it seems like it should work really well.

What's the reason for retarding the remainder of the map 1-2°?
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