I decided to clean my ebp sensor and tube yesterday as it's never been cleaned or replaced since I've had the truck (7 years). Lots of gunk and soot came out. I decided to do it as proactive maintenance, and I was not having any problems with the truck. Guess I needed a project
I have been running VXCF4 strategy on my sct custom tunes and I believe it utilizes the ebp sensor so I figured it was something that should be done at some point.
I put everything back together perfectly and even threw in a new OEM blue air filter. When I started the truck there were no CEL and I immediately noticed a much deeper exhaust tone. I glanced down at my scangauge II and my VGT numbers shows 14 at idle. I drove it around and it had power but couldn't even hit 25lbs of boost at WOT. The VGT number increased when driving but was back to 14 when idling or coasting.
I figured I ruined the ebp sensor when I cleaned it, so I went to ford and picked up a new one, came home took everything back apart and when I pulled out of the new ebp sensor out of the package the threading was much smaller and too small to screw into the nut/ebp sensor tube.
At this point I had a hellava burn going.....so I decided to tune the truck with a tune off VXCF9 that is inferred (not using the ebp sensor) and it seems to
run good except now my boost is way to high, hit 34 and 35 (pegged my gauge) several times at full throttle. Also, my VGT numbers shows 41 at idle now not 14 like on the vxcf4 tunes.
I have never seen this high boost since I've owned the truck and don't think it's normal, so now I'm worried about overboosting.
I got on it on the freeway tonight and it jumped up and bounced off 35lbs then started coming down then shifted and slammed back to 34-35lbs.
So before I take it to ford dealer, anyone have any ideas on my issue or have experienced this?
I also tried several other tunes on both strategy and both exhibit the same problem based on their strategy:
vxcf4 tunes= low boost, 14 VGT at idle, noticeable deeper exhaust tone (now due to possible bad sensor sending low vane position)
vxcf9 tunes & stock calibration = Really high Boost 32-35 at WOT, runs good other than that.
On a side note, I flashed back to completely stock on my sct tuner calibration (vxcf9) and hit 32lbs of boost on stock programming!!! This is what is really leads me to believe something aint right
Could unplugging and cleaning out the ebp sensor and tube cause more flow or something that would increase my boost even on vxcf9 without using ebp sensor?
Before I cleaned and possibly ruined the ebp sensor, when tuned on either strategy on any of the tunes I have, I would normally see 28-31lbs absolute max. I checked all my connections, everything is good, I'm really stumped on what the problem is.
Heres the difference in the two sensors: dealer said this was the one for my 2005 truck.
Thanks for any help, my truck information is in my sig,
2005 F350 Crew Cab LB FX4 Lariat
Loaded-Leather, Sunroof, 06 Chrome Package
5'' Tuff Country Lift
Toyo MT's 35's with Race Line Renegade 20's
ARP Studs, EGR Cooler Delete, Coolant Filter
MBRP 4'' Exhaust Turbo back, No Cat
SCT X3 Tuned by TSD & IDP
Stock Airbox, NON-MAF Truck
GT3788VA POWERMAX Turbo
DiProcol Optix EGT & Boost Guages , Scangauge II