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Followed the steps from the forum on my '06 PSD, and no issues at all. Seems to spool up the turbo quicker, and did notice that the temp takes a little longer to come up. No check engine light. On the triple pup programmer, I set it to stock config., unplugged the EGR, switched to performance, everything seems to be ok. Have been driving it for 3 days now with no issues or check engine light. Hope she lasts !!!
I was a little reluctant at first as to a lot of guys who unplugged there EGR valve, and check engine light came on shortly after. I could have lived with it, but it would get annoying after a while.
Not sure on the turbo sticking, but as I posted before, I definately noticed my turbo spooling up quicker. Some of the techs will probably chime in on your question...dg
Don't believe the EGR unplug would cause the turbo to spool up quicker. The amount of gas recirced is not enough to reduce the exhaust flow to the hot side.
Often, your expectation of a result influences your perception. Like when your engine runs smoother when your truck is clean.
The response seems to be quicker, could be my perception, who knows. And you are correct, my truck does run way better when I have put in a couple hours of detailing. Maybe it's a combination, "egr valve, oil change,service intake, couple beers,detailing". Whatever the case, I like the results I'm getting
I don't think the turbo is spooling any quicker. I would think it would be a cleaner burn in the cylinders from a cleaner mixture. Why would the techs think you don't have to do this on the newer ones? I was under the impression the reason for doing this was to eliminate the soot fouling in the intake and to help with soot control in your oil. Do the newer ones produce less soot?
Newer 'flash' programming reduces EGR operation during idle, which was a big contributer to fouling. Mines plugged in at 15000 mi. (since new). I pulled it to clean it at 10000 and it was not that bad. I might wait til 30000 to pull it again.
I first attempted to unplug my EGR around 38K, but didn't experience any significant result. So, I plugged it back in. A few months later, the truck started to act up and the dealer replaced the EGR. I then tried unplugging it again. Boy what a remarkable difference...quieter and much quicker off the line. I run a manual trans so I much more conscious of the RPM gauge, and the overall "feel" of the truck.
Bottom Line: With everything I've seen, heard, and experienced, I 100% believe that the only real benefit will come when you have a relatively new, ungunked, fully closed valve. A good "pull and clean" may help as well prior to pulling the plug.
It's been unplugged for 2 months now without issue and I like knowing that it's running clean. There'd have to be some significant new news for me to change my mind and plug it back in.