EGT probe is a must?
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15,168 Posts
yes you need A EGT probe.
the EAS (expandable) probe will allow you to "daisychain" other probes together. Like a turbo timer, water/meth information. (these other probes will be available soon)
the EAS (expandable) probe will allow you to "daisychain" other probes together. Like a turbo timer, water/meth information. (these other probes will be available soon)
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24,781 Posts
Yup I agree.
Im not sure i the edge uses the probe to program your truck. But, you want to use it to watch the temperatures. There not to bad to put in if you do it yourself. There easy to get to the manifold if you remove the inner fender.
Im not sure i the edge uses the probe to program your truck. But, you want to use it to watch the temperatures. There not to bad to put in if you do it yourself. There easy to get to the manifold if you remove the inner fender.
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18,331 Posts
EGT and boost guages should be factory. All I watch is those 2. not even rpm or speedo anymore.
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18,331 Posts
Stepper motor goes nuts every now and then :rof
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7,784 Posts
well take your right foot off the pedal and see if that helps
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68 Posts
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!
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972 Posts
The Edge CTS will take an EGT reading off of the two stock probes we have in our trucks but due to the location of the said probes neither of which are in the mainfold you will not get an accurate reading of the temps. This is why it is suggested to do the aftermarket one.
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972 Posts
If you DL the CTS manual there is a write up at the end showing at least on the 07.5 the pre and post probe it is way to far down the line to be use safely for the temp values. After reading the blurbe again I may have missinformed you that your truck is equiped with the probes. I am sure someone willl chime in and correct me.
Later
Phil
Later
Phil
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6,119 Posts
The stock probes are only on the LMM. They are for detecting the temp before and after the DOC/DPF.
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4,023 Posts
The post refers to the OP's truck.
There are 2 EGT sensors, before and after the dpf. They monitor dpf regeneration temperature as a feedback for the regeneration variables: the intake valve, main timing, and post injection qty as best as I can tell. These are the main variables for controlling regen temperature which is critical to regen effectiveness.
They can also be monitored like any EGT reading. I wasn't intending to be vague, just trying not to be a know-it-all.
There are 2 EGT sensors, before and after the dpf. They monitor dpf regeneration temperature as a feedback for the regeneration variables: the intake valve, main timing, and post injection qty as best as I can tell. These are the main variables for controlling regen temperature which is critical to regen effectiveness.
They can also be monitored like any EGT reading. I wasn't intending to be vague, just trying not to be a know-it-all.
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11,168 Posts
Once you dump the DPF the probes are no longer used.
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