p2453 cant get rid of code - Chevy and GMC Duramax Diesel Forum
07.5-2010 LMM Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect

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Old 08-10-2011, 07:00 PM   eBay Motors  #1 (permalink)
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p2453 cant get rid of code

have evo cs race with DPFdelite . ran truck on level 7 and truck threw this code put back to level 2 and can clear code with tuner but as soon as i accelerate 1/4 throttle code comes back, WTH
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Old 08-11-2011, 05:39 AM   eBay Motors  #2 (permalink)
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Sure you dont mean 2543? which is a low fuel pressure code. I think you might need to shim your FPR valve, watch your FRP and DFRP with your edge. put the two gauges side by side and see if a difference shows up between them as you accelerate.

And for a stock truck, level 7 will kill your tranny and cause a lot more smoke than necessary and might kill your turbo if your not watching your EGT's. Lvl 3-4 is about all I would run with a stock tranny if your not too hard on it.
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