2017 L5P Duramax Code P026D - Chevy and GMC Duramax Diesel Forum
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post #1 of 2 (permalink) Old 11-26-2019, 08:11 AM Thread Starter
Join Date: Nov 2019
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2017 L5P Duramax Code P026D

For those folks who may have the check engine light come on and following code comes up: P026D I want to let you know that for me it was the MAP sensor being dirty. It has happened twice in the last few months and I have been able to clear the code by cleaning the sensor. I looked up the code on line and could not really find a solution or clear explanation. I am not sure what the reason is for the sensor getting dirty so soon again after the first cleaning which was about 3 months ago but I just wanted to post this to try to help out. My truck has 64K miles and I am the only owner so far. Anyway hope this helps.
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post #2 of 2 (permalink) Old 11-26-2019, 08:35 AM
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what kind of air filters are you using?

2002 Chevy 2500HD Crew - Original owner - 408,000 miles so far. All stock with the exception of a lift pump.
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