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Thread: 3.3 Bar MAP PWNs E40

  1. #1
    Senior Tuner 5_Liter_Eater's Avatar
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    3.3 Bar MAP PWNs E40

    I'm switching from blower to turbos. Currently running the 2.5 bar SD OS. I already have the Cobalt 2 bar MAP and I was planning to swap in a 3.3 bar MAP from the diesel trucks; AC Delco P/N 213-4658, GM P/N 12623671 formerly GM P/N 16235939. But when I just went into my tune to plug in the linear and offset I noticed the linear tops out at 256 Kpa. This limit appears to be specific to the E40 as an '06 vette has a 512 kpa limit. So it looks like I'm not going to be able to use it... Guess I have to spend a buck and a half on the DPEVettes custom 2.5 bar MAP.

    E40 FTL!
    Last edited by 5_Liter_Eater; 11-17-2011 at 04:35 PM.
    Bill Winters

    Former owner/builder/tuner of the FarmVette
    Out of the LSx tuning game

  2. #2
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    LOL,, E40's are the bastard child of the Engine controllers, my 06 SS Trailblazer uses that too, so i feel your pain! Shits scans slow compared to an E38.

    -Carl

  3. #3
    Senior Tuner DSteck's Avatar
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    The DPE one works great, but instead of 10.21 for the offset, use 12.21. I've found that every vehicle I put that sensor in reads 2kPa low with the calculated offset from the data sheet.

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  4. #4
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    Quote Originally Posted by DSteck View Post
    The DPE one works great, but instead of 10.21 for the offset, use 12.21. I've found that every vehicle I put that sensor in reads 2kPa low with the calculated offset from the data sheet.
    crap, now my table is going to be off.. or just add 2 to every axis label.

    -Carl

  5. #5
    Tuner in Training
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    Does anyone actually know the linear/offset for the 3.3bar sensor?

  6. #6
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    I am not sure if it works but looking at a (DSL) tune's slope the max is 366.70 and small is 33.33.

  7. #7
    Senior Tuner 5_Liter_Eater's Avatar
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    From my understanding this is the data sheet for the 3.3 bar diesel truck MAPs listed above.

    http://www.powerandsignal.com/docs/P...s/12215049.pdf
    Bill Winters

    Former owner/builder/tuner of the FarmVette
    Out of the LSx tuning game