Null Map on PCIII

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May 20, 2009 | 09:50 PM

Taterdog

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From: Lenexa, KS (KC)

Null Map on PCIII

I think I know the answer, but need a check. I have the HD stage 1 download installed plus a PCIII. If I run a null map (all zero's) on the PCIII, I should essentially be running the unmodified stage 1 download, correct? I'm leaning out my map, but assume as long as I stay positive in most places, I shouldn't be running any leaner than the HD download. What say you?

May 21, 2009 | 06:42 AM

harleytuner

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From: Fredericksburg, Va.

You are exactly correct. The PC MAP is set at zero for no change. Anypositive number in your A/F will richen up the block that you change.

May 21, 2009 | 06:49 AM

Taterdog

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From: Lenexa, KS (KC)

Thanks, Harleytuner, I thought that was the case, but appreciate the confirmation. I've always been concerned about leaning out too much, but then got to thinking that I've got more leanout available without causing problems.