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Discussion Starter #1
My trucks been tuned and deleted I had it on a tow tune and it ran great had no lights on the dash at all.. I went to switch the tune today and now I have my def light comin on with a 90 miles before I can’t go over 65 message. Never had it before.. anyone with any insight on this?
 

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Best bet is to call the company that did the tuning on the ECU. Tuning the L5P's can be finicky with each truck/ tune so you will need to get them to revise the tune.
 

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Best bet is to call the company that did the tuning on the ECU. Tuning the L5P's can be finicky with each truck/ tune so you will need to get them to revise the tune.
Yea that’s what I was thinkin. I wrote them but they’re closed for the weekend so I’m just shit outta luck till Monday
 
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