Make sure you drive the truck a few times or about 100 miles after reverting to the factory stuff before you take it in for testing, so that the computer has time to relearn the correct parameters. I don’t know which block off plate you have right now, but one like this is the best kind for removing for emissions because the bolt holes are actually slots, allowing you to simply loosen the bolts to slide it in and out, which is much faster and easier. The MiniMaxx Race version linked up above will allow you flash a custom tune to remove the codes for the DPF and EGR elimination, however since your state requires a plug into the engine computer for emissions testing, in addition to reinstalling the factory exhaust you will have to remove the EGR block off and flash your factory tune back when taking it in for them to test.
#2008 chevy duramax dpf delete tuner full#
Since you already have the blockoff plate for the EGR installed and have cleaned the system, I would probably stick with that setup instead of changing to the full EGR delete kit.
When I get the tuner you recommend, I’m sure it will allow me to clear the code, but to pass inspection I know I’ll need to re-install the PCV valve, but will I also need to remove the EGR blocker? Since blocking the EGR & removing the PCV valve, I never cleared the code, so the light is still on. Could I achieve the same result by leaving the EGR with the blocker? Then once a year I could just remove the blocker and re-install the DPF? Before I proceed, I have one more question the start of this journey was when the ck engine light came on indicating an EGR problem. I’ve already removed, cleaned, then re-installed with a blocker plate. Re-installing the DPF wouldn’t be bad once a year to pass an inspection, but re-installing the EGR is a job. I will be placing an order for the DPF replacement pipe & tuner, however I really wish I didn’t need to replace the EGR. Mechanical issues is not the problem, working on a diesel for the 1st time is. Thanks Jeff, the 1st time I’ve been able to get a full answer, other than just an opinion. This is the best option for the LMM Duramax for a truly out-of -the-box delete capable tuner: There are a lot of tuners that can help with different tunes for fuel consumption, horsepower and towing modes, but there are only a couple options for race tuners that are able to unlock your truck for the real power and reliability of deleting the DPF/DOC and EGR. When adding performance or deleting systems on your LMM, the first thing that you’re going to need is a good tuner. Removing these highly restrictive and failure-prone systems allows your truck to breath much easier and run much more efficiently.īelow I’ve compiled the list of required parts that you will need to delete the DPF and EGR systems on your LMM Duramax engine, as found in the 2007-2010 GMC/Chevy diesel trucks. Be aware that these modifications are only for off-road trucks in the US, or for countries without these regulations. If emissions aren’t a concern for you, then adding the HP and mileage is as simple as deleting the DPF and EGR from your truck. Want to add about 150HP and get an average of 5 MPG more in fuel mileage out of your LMM Duramax?
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