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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Please help with log- Boost question



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      02-19-2015, 12:09 PM   #1
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Please help with log- Boost question

Problem; boost appeared to mostly dissapear (from OFT guage and it using fuel gauge- erratically going from 0-4psi only)

After downloading the OFT update Tuesday night and uploading stage 2 bin to it and then the car, it doesn't seem to show the right "boost" on the device in real time or on the fuel guage any longer... it worked fine before I updated it this week.
This morning, I did a few seconds of WOT and had the OFT log/record,,, and it's showing on the log (start at time: 10.35) that boost went from 3.54 up to 14.86 settled around 12.5-13 and then tapered down 9.97, then a AT gear change and boost rose up to 14.7. (after i let off, it quickly spiked but target was way lower)

this was on the OFT stage 1 bin (I had changed it back to stage 1 last night thinking there was a glitch on stage 2.... Stage 1 before my "template upate" worked fine and the boost gauge on the OFT and fuel guage worked fine...

what's wrong? (I was about to go buy new boost solenoids...lol because the OFT was saying boost was erratically going from 0-4psi...)

I think I've uploaded the log taken from the OFT successfully on here as an attachment so people that know how to read them can tell me what they are seeing.
thank you!!
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      02-19-2015, 12:17 PM   #2
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hopefully there is an attachment this time. the first one doesn't look like it did.. so i did cut/paste to a word doc and saved as a jpg file.. so hopefully it worked htis time.
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      02-19-2015, 12:23 PM   #3
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Nope no attachment
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      02-19-2015, 12:31 PM   #4
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dang-it,,, whew,,,I finally figured out how to attach... here it is
Attached Images
File Type: pdf 335i log 02192015.pdf (510.3 KB, 173 views)
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      02-19-2015, 01:23 PM   #5
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I just talked to Robert at Procede and it sounds like my car is fine,,, that this time with OFT and Procede V3, the canbus thingy is making the OFT real time read-out show the boost wrong even though it's really OK. He's going to look at the log to verify everything is working as it should... whew..
i was all ready to start tracking down boost or vacuum leaks, purchase new boost solenoids, and contort my body to adjust wastegate actuator arms... (i might check those anyway for for fun)
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      02-19-2015, 02:10 PM   #6
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you would know if the boost was low, the car is a SLUG with no boost.
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