well take your right foot off the pedal and see if that helpsStepper motor goes nuts every now and then :rof
Killerbee, I am new to Duramaxes and have learned a lot from reading info That you have provided, thanks! Now a lot of threads recently, you have posted vague answeres to questions like the one above. Could please expand on the post above? So there are 2 probs on a stock truck, can we get any info from them? What do the stock sensors provide info to? What are your thoughts on aftermarket egt probs? Are these stock probs on all Duramax models? I think these are some of the questions that I and the original poster would like to know. Thanks!Yes the stock truck has an EGT probe. 2 of them.
The stock probes are only on the LMM. They are for detecting the temp before and after the DOC/DPF.Thanks for the more detailed answere. Just curious as to what the stock probes are for if the reading is not accurate? Are they for emissions?
Thanks
Once you dump the DPF the probes are no longer used.What temp should one see when monitoring pre DPF with no DPF intact on an LMM? I do not have an EGT gauge....yet!
Thanks.