Compression Ignition Addict
Join Date: Dec 2007
Location: Grimes, Iowa
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Quick test, if you have a strait pipe exhaust simply un plug the Vgt solinoid with the truck running and listen, you will clearly hear the jet engine sound disappear and turn into a deep rumble, doesn't exactly proove anything but if it doesn't change it's a start to a proper diag,
If I remember correctly if you disconnect the batts for 30 min it will reset the general parameters of the ECU, and will re-learn the Vgt solinoid, I would probly turn it back to stock before doin this just to be safe, wouldnt hurt to take it around the block with a stock ECU and see what your EGTs do then.. Whatever your issue, if any, it seems minor..
09 F450 CC LB lariat 6.4 black on black 23k miles, stock.. (For now)...
97 F250 SC LB 4x4 7.3 05 Superduty axels, 18" King Ranch Rims, "under the knife"
Former 6.0 Owner. (05,05,03)