PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

Performance mode

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Old Oct 24, 2012 | 10:43 PM
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Default Performance mode

So doing a little bit of tunning I notice their is a performance mode on hp tuner has anyone done the performance mode switch and does it do anything special I know u have to 2 Wire a momentary ground switch to pin J1-71 on the PCM (the blue connector) to trigger it
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Old Oct 25, 2012 | 04:47 AM
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Yes I would like to know about this also being my new motor is out would be easiest to wire now.
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Old Oct 25, 2012 | 09:10 AM
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I think it's like performance shift but I'm not sure i was trying to see if the experts on here know and have done it
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Old Oct 25, 2012 | 06:31 PM
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It's however you tune it.
There are two sets of trans tables in the pcm .
Both can be customized to suit you.

I put the switch in my car and upped the line pressure
in lower areas that would be annoying all the time.
No TCC and shifts quite late. So I hit the switch the converter unlocks and
it drops down a gear. If that fails to make enough noise I open the cut-out.
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Old Oct 25, 2012 | 08:08 PM
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Oh okay I get what u mean bud thanks a lot for explaining it
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Old Oct 26, 2012 | 10:55 AM
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So this is strickly for trans functions or does it allow for say timing advance change say?
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Old Oct 26, 2012 | 10:48 PM
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Originally Posted by sicksspeed
So this is strickly for trans functions or does it allow for say timing advance change say?
just trans functions, EFI LIVE custom OS can do what you just described though
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