My name is ***** ***** I will assist you.
Can I get the full VIN on thos vehicle? I want to check something in the ddscn system in regards ***** ***** complaint.
Some of the DDEC VI have software revisions due to this and I want ro see if the server is showing whether it was done or not.
How does the actuator respond any other time? If tou put the truck into EGR bypass mode, will it throw a code? To do that, stsrt truck and let idle for a few minutes. Once tou hear the turbo engage and tou get that high pitch sound, sweep accelerator 3 times and the turbo will die out, the vanes will close, and EGR should open fully into EGR bypass test mode. See if you throw a code.
I'm presuming you have the DDDL program. On it, go to the clscreen giving you the detailed gauges. Scroll to the egr. On pwm1 and pwm4, you will see them swap numbers. Pwm1 will be at 70 or higher when at idle and then go to near 0. The pwm 4 will be near 0 and the pwm 1 will go up to 70 or higher.
Omce you are there and in bypass mode, look at tour Delta P counts and the Delta P pressure. Does it show the counts above 100? If so, what are they? On the pressure, what is it?
This will help me know if the software is off or if the Delta P needs to be calibrated and is causing the issue you are having. Plus it helps to determine if EGR tubes are blocked with soot.
Check the air line going to the VPod for proper air. Also check the air drier. If the air gets hot and creates too much moiture in the line, or is slinging oil, it will flow more when engine is hot giving weak air to the VPod causing this issue.
Immediate things to check are software revision, Delta P counts for calibration issue, air to VPod, also the oil line going to the EGR. If that valve block on the engine is trashed up, it will create issues on the EGR.
One other thing to check is that harness on the back of the engine. It has created a lot of headaches. If the insulatiin feels hard and stiff, it can create havoc when engine gets hot casmusing similar issues. I tend to get codes for the VPod when that happens.
Omce I get the VIN, I can pull full sheet for the 39 flash code as well.