| Cm871 code spn 2791 fmi 13 |
| 09-28-2016, (Subject: Cm871 code spn 2791 fmi 13 ) Post: #1 | |||
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| Cm871 code spn 2791 fmi 13 EGR VALVE CONTROLLER OUT OF COLIBRATION... DOES THE EGR VALVE HAVE TO BE REPLACED? | |||
| 09-28-2016, (Subject: Cm871 code spn 2791 fmi 13 ) Post: #2 | |||
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| RE: Cm871 code spn 2791 fmi 13 Unknown. Remove it, clean it thoroughly with carb cleaner, use some penetrating lubricant ONLY if required, while attempting to free it's movement, if it moves freely full travel after then no. Just clean out penetrating lubricant as the soot will love to stick to that, and reinstall. Test the actuator as well while removed to ensure it travels properly. If you can't free it's movement, or the spring is broken or damaged, then yes it must be replaced. User's Signature: Why? Why do I always ask "why?" Because I can't learn or help teach others with "'cause I said so..." | |||
| 09-29-2016, (Subject: Cm871 code spn 2791 fmi 13 ) Post: #3 | |||
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| RE: Cm871 code spn 2791 fmi 13 It can also be the delta-P sensor bad, or clogged crossover tubes. It can also be other problems/sensor issues that make the engine want more EGR than the valve can give. A thorough EGR tune-up and cleaning out the EGR valve and testing it is a good start. ======== It can also be the wrong software in your engine causing it if someone put a different HP setting (calibration) in. User's Signature: ->: What I post is just my own thoughts and Opinions! --- I AM Full Of S__T!. | |||
(Online)| 09-30-2016, (Subject: Cm871 code spn 2791 fmi 13 ) Post: #4 | |||
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| RE: Cm871 code spn 2791 fmi 13 Thnks for the info,,,, | |||
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