Nope it wont hurt the perfomance at all! I didnt do anything to mine and the light went out. It only came on 5 times total and would always go out after a day or so. You can get the fingerstick to eliminate the code if it stays on 
Egr
So my truck is throwing DTCs' (EGR flow insufficient, EGR open) I do have turbo back cat delete and an intake. My questtion is: Will this effect performance at all? Do I need the EGR fingerstick and blocker or can I just run with the codes on?
2005 LLY. Edge Evo CTS
2005 LLY. Edge Evo CTS
1 - 8 of 8 Posts
no your fine to run it like this
Its a computer chip with 5 wires on it that you run into the engine wiring harness under the hood. It confuses the computer to think the EGR is ok after you block it or add remove the cat and set a code for the EGRwhat is the fingerstick?
Where do you get the finger stick?
You can get the finger stick from a lot of different places. Kennedy Diesel, All Season Diesel Performance, etc.... Just do a search on google for duramax finger stick or something that goes along with that.
Codes
As long as your state doesn't require smog checks on diesels you should be ok. If they do like Calif started doing, it is an automatic failure if they see the error codes...So my truck is throwing DTCs' (EGR flow insufficient, EGR open) I do have turbo back cat delete and an intake. My questtion is: Will this effect performance at all? Do I need the EGR fingerstick and blocker or can I just run with the codes on?
2005 LLY. Edge Evo CTS
1 - 8 of 8 Posts
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