Need help with Spartan EGR delete tunes - Diesel Truck Forum -
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post #1 of 2 (permalink) Old 02-03-2013, 07:28 PM Thread Starter
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Need help with Spartan EGR delete tunes

Just did a complete EGR delete on my 6.4.

Down-loaded NEGR tunes from Spartan Website.

What is the difference between, for example, a tune marked:

250HP 1 NEGR EL and 250HP 2 NEGR EL

I understand the Early Lock designation, just not why one tune is marked 1 and one is marked 2.
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post #2 of 2 (permalink) Old 09-21-2013, 03:41 AM
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Read the info you got with your tuner 1 is early lock and 2 is late lock ,it has to do with rear end gearing and tire size.
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