Cm871 codes 2961 2764 4214

[Rawze]

(03-30-2016 )JetHauling Wrote:  Thanks for the responses. She has a very clean smooth idle, and like I said I've discovered that when the regen switch is in the off position she runs perfect like she should.. I'm going to change the back pressure switch and see how she runs tomorrow.. This weekend I'll check the "delta" tube again... Where is the Altitude sensor and how do I check this

Use Insite to see what the barro pressure is and compare it to a weather-map that shows pressure for that day.

some trucks have this sensor directly, but others use the crank case pressure sensor and imap sensor to calculate it instead.