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I recently got my tuner I purchased from PPEI I got the dps5 switch and the trans tunes as well. I am trying to figure out how to go into the tuner and turn the EGR off. Hopefully I didn't waist my money if anyone knows pleas help. Thanks
 

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2003 GMC Sierra 2500 HD Crew
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1. Those tunes are likely locked by the seller to prevent changes and copies.
2. Disabling emissions equipment is a crime and the forum will not be able to help you do that.

Please don’t take that information as me being a jerk I’m only trying to help.
 
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Yep PPEI is all emissions compliant tuning. An autocal, which simply loads your tunes (not allows you to adjust). And yep, they likely are locked so we cannot all copy their extensive work perfecting their tunes.
 
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