Just put a 4" strait pipe MBRP exhaust on my 05 Dmax and now its throwing a few codes. Two are recirculation codes and one is a turbo underboost code. Ive tried to read up on it but just want some strait answers what are all the possible fixes for it. Ive read that a ppe or livewire programmer would and started reading about the fingerstick but just want answers, need to get the truck up and running right. Thanks.

Follow this link to see what Kennedy says about the Finger's Stick.

Click on Duramax Performance, then click LLY, I presume you have an '05 based on your signature.

Help yourself and fill out your signature so members can see what you have.

http://www.kennedydiesel.com/

My truck, a CA NC8 emissions truck, has a 4" exhaust, blocked EGR, and a Finger's Stick and I get no codes related to these modifications.

So the Finger's Stick works well for me.

Maybe some other members will add information on using tuners to block codes.

ppe code elimiator will fix your troubles 100% garunteed

Ok is there any benefit to running a bloker plate and fingerstick compared to the code eliminator other than price?