2013-4 Edge Insight

[Joseph Donnelly]

See the photo on p. 35 of Issue 82. There is an egt probe in the manifold, and I hope it is EGT1. I haven't driven the truck since installing the Insight but hope I can tell if EGT1 is pre- or post-turbo by temperatures.

 

[JLandry]

See the photo on p. 35 of Issue 82. There is an egt probe in the manifold, and I hope it is EGT1. I haven't driven the truck since installing the Insight but hope I can tell if EGT1 is pre- or post-turbo by temperatures.

Joe,

Unfortunately, if I'm reading the factory service manual correctly, the photo you referenced in Issue 82 is not an EGT probe but the Exhaust Pressure Sensor. For several color pictures, see chapter 11 in the factory service manual (Exhaust System: SENSOR, Exhaust Pressure: Removal).

Chapter 11 Exhaust System: SENSOR, Exhaust Temperature: Description states:

The Diesel Exhaust Temperature Sensors are thermistors and change resistance based on the temperature being measured. The Powertrain Control Module (PCM) provides a 5 volt reference voltage to the sensor. The PCM monitors the change in signal voltage and converts this to a temperature value.

For 2013 there are five exhaust temperature sensors:

• Exhaust Temperature Sensor (T1) is located in the front exhaust pipe.
• Exhaust Temperature Sensor (T2) is located in rear of the Diesel Oxygen Catalyst (DOC).
• Exhaust Temperature Sensor (T3) is located at the rear of Diesel Particulate Filter (DPF).
• Exhaust Temperature Sensor (T4) is located in the center of the Selective Reduction Catalyst (SCR) near the ammonia sensor.
• Exhaust Temperature Sensor (T5) is located at rear of the SCR.​

I've visually verified EGT1 is indeed in the front exhaust pipe just prior to the combo DOC/DPF unit.

I guess we'll just have to get used to the EGT1 temps as a reference when cooling down the turbo.

Best regards,

John L.

 

[AH64ID]

Thanks for the correction. I know duramax added 9th injector, and I think it would be nice of cummins to do the same.

Those post turbo temps are higher than I would have expected for that far from the turbo. How much cooler do they run when not in a regen?

 

[Joseph Donnelly]

Thanks, John. Every time I try to use the fsm, I have to get a new CD from Chrysler because it requires Internet Explorer, and every time Explorer updates, the disk won't work anymore. I knew the sensor in the manifold had to be either temp or pressure, and my hope that it monitored egt must not be realized. When we monitor the temp at EGT1 we will know for sure by how high it goes.

 

[JLandry]

Every time I try to use the fsm, I have to get a new CD from Chrysler because it requires Internet Explorer, and every time Explorer updates, the disk won't work anymore.

For all you've done for them, Chrysler should give you a free subscription to TechAuthority where you'd be able to view all the factory service manuals... and so much more.

John L.

 

[S.Morris]

My son just installed the insight with the Juice (whatever its called). It has 6 adjustable on the fly ratings. It sure makes the truck feel like the power it should have now. The lazy feeling torque manement is tuned out enough that it feels like a "normal" truck when on a midrange setting.he wanted the monitor mostly and the 13MY is more than 1/2 way to end of warranty......so he told me:-laf

Will report more in time. (He just wanted it to feel like his 05 with built transmission and smjr, and it was for some reason much quicker than any other same setup truck I ever rode in..........just one of the factory that runs a lot better than the rest trucks)

 

[JLandry]

The lazy feeling torque manement is tuned out enough that it feels like a "normal" truck when on a midrange setting.he wanted the monitor mostly and the 13MY is more than 1/2 way to end of warranty...

If the torque management is indeed suppressed, it'll be interesting to see how his transmission and rest of the drive train hold up.

John L.

 

[Joseph Donnelly]

John, I checked the service manual and I agree with you. It is disappointing that the probe in the manfold is a pressure sensor. I just took a trip and it is pretty clear from the egt range that the probe for EGT1 is in the exhaust pipe . It was also nice to be able to monitor rail pressure, fan speed, torque converter temperature, etc.

 

[JLandry]

I just took a trip and it is pretty clear from the egt range that the probe for EGT1 is in the exhaust pipe.

On the bright side...

If the engine is left stock, then presumably monitoring the EGT while operating isn't necessary because dangerous levels really aren't possible.

I do find monitoring EGT1 to be handy while at engine idle during turbo cool down after driving. I watch for EGT1 to decrease and gradually start leveling off, then I shut the engine down. The exact temp doesn't matter... just the trend.

Best regards,

John L.