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  1. EGR flow issues- where do i go from here?

    Uh oh, i WAS feeling good about all this data. I have 3 graphs of different drive cycles and the EGRT never changed from -40*F they are PIDS: Exhaust gas recirculation Temperature Bank 1 Sensor 1 (EGRT11) and EGR Exhaust gas recirculation Temperature Sensor C Bank 1 sensor 2 (EGRT_C) Neither...

  2. EGR flow issues- where do i go from here?

    I think this last STANDARD DPFE sensor did the trick but the scanner that I was using was not pick up the EGR opening? Correct me if I am wrong Airline. These numbers look about normal according to the info that you can see.. There are still no codes and still no surging

  3. EGR flow issues- where do i go from here?

    I have been graphing a few drive cycles using FORscan and it seems that the EGR valve is opening. The other scanner evidently was not picking it up. Here are some of the data PIDs during one drive cycle. I had 16 PIDs going, but I am going to try to condense it down for space EGR % demanded...

  4. EGR flow issues- where do i go from here?

    "I want to know at KOEO and IDLE -- Compare I want to know how much these readings change between the 2" The Following: PID Readings KOEO / IDLE BARRO: (Pressure) --- 14.6 PSI / 14.6 PSI MAP Press...

  5. EGR flow issues- where do i go from here?

    I will see if I can run live data tomorrow with Forscan just to see what they read. I will looking at coolant temp sensor a little closer. I am sure I will be changing it. Wow, this has been an adventure. Thanks, I will post results. It will be a while. Feels like Alaska around here

  6. EGR flow issues- where do i go from here?

    I had a subscription to Forscan that ran out, although it will let me run some limited diagnostics. I scanned it for codes and it had none in the PCM module. Only a code for a TPMS tire in BCM I ran the KOER self-test and it picked up code P1116:00 Engine Coolant Temperature Sensor out of...

  7. EGR flow issues- where do i go from here?

    I got the Rock Auto DPFE sensors last week and I put on on and have driven it around 400 miles since. I tested it while connected without the hoses and it read -0.004 without much fluctuation.(KOEO) I have been running live data most every drive and the demanded and actual EGR...

  8. EGR flow issues- where do i go from here?

  9. EGR flow issues- where do i go from here?

    I tried the scanner bi-directional function for the EGR but it was not functional for this truck.I checked the DPFE voltage at the connector KOEO (pins 2 and 3) and it reads 5.03-5.04. and also the same readings to ground (pin 3 to G). The voltage drop is 0.017 I re-checked the DPFE...

  10. EGR flow issues- where do i go from here?

    Hanging out with grandkids this weekend. Get back with you guys later. This scanner shows some values in metric and some SAE. I have it set to standard but it has defaulted back to completely metric once or twice. That is a lot of research you have done ...cheers

  11. EGR flow issues- where do i go from here?

    This tool is a I tested the egr sensors today : The desired and actual % went from 0% at idle to 14% @ 2000 rpm. The Dfpe is -0.25 to-0.30 psi flows up to-0.09 to 0.56 psi at 2000 rpm The MAP Pressure sensor went from 5.4 to 12 psi. The truck seems to have passed this little test,right...

  12. EGR flow issues- where do i go from here?

    Our desktop failed a couple days ago so I will try this on these tiny cellphone keys. The reading on the DPFE connector Key on engine off is 12.65-12.67. That day when I was measuring the readings on the 3 different DPFE sensors, I decided to hook up the original OEM sensor and run it. The...

  13. EGR flow issues- where do i go from here?

    I took off the hoses at the DPFE an ran live data with Key on engine off and it read -3.65 PSI, basicsally the same. I hooked up the OEM FoMoCo DPFE sensor. It read -0.38 to -0.43 PSI I hooked up a third DPFE sensor and it read -3.63 PSI. All of these readings are with no hoses on. I checked...

  14. EGR flow issues- where do i go from here?

    Ii have not tried reversing them yet,...that has crossed my mind. That shouldn't hurt anything if only temporarily,right?) I cleaned the hoses and stuck a coated wire down the tubes as far as it would go. They seem clear other than a light oily residue

  15. EGR flow issues- where do i go from here?

    I could not find the DPFE voltage on this scan tool. It is a sorta entry level diagnostic tool but it does have a couple more EGR PIDS. I will try to get out there and disconnect the hoses tomorrow hopefully. Working 12 hrs next few days. Thanks again for your time

  16. EGR flow issues- where do i go from here?

    OK guys,Correction-the UOM is PSI and NOT Kpa, but the numbers are right. I sincerely thank you guys for your help With the key on engine off: "Differential Pressure Feedback EGR(Exhaust Gas Recirculation)Sensor - Raw" is -3.67 PSI "Voltage Of Exhaust Pressure Sensor" fluctuating from 0.997...

  17. EGR flow issues- where do i go from here?

    The "Differential Pressure Feedback EGR(Exhaust Gas Recirculation)Sensor - Raw" -- fluctuates between -3.70 to -3.40 is in KPa .I forgot to put the UOM in.

  18. EGR flow issues- where do i go from here?

    For the last couple of months, I have been having the bucking/surging in low gears. Been getting codes P0402, P139A and P139C. I have already tried two new DPFE sensors. After installing the sensor, I will clear the codes and they are back after a couple drive cycles. I have been only getting...

  19. EGR DPFE Sensor Assembly Replacement Write-Up (LB5Z-9J433-B)

    That is some good work there. Very informative,Thanks .

  20. TPMS problem

    If anyone has a problem like this in the future, just read post #8 above. I confused myself and overthunk it.Thanks again fellas, Happy New Year





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