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  • #16
    Originally posted by bondslayer
    I believe the 3 bar sends a better signal vs the 1 bar. I put the 3 bar in( takes 5 seconds) and installed 36 lb injectors and truck registered and ran fine before I got it on the dyno. DIYautotune.com and order the gm 3 bar map sensor. It's like 60 bucks.
    I would have used the Dodge 3 bar MAP sensor... GM is usually MAF not MAP.

    Difference between 1, 2, and 3 bar is all in the voltage. All operate from 0 to 5v (for Dodge). Then the PCM needs to know how to interpret that voltage into MAP.

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    • #17
      Where would you suggest finding a 3bar dodge sensor from? It plugged right up, took 5 seconds. I'm open to suggestions though.

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      • #18
        GM 3 bar maps work, we have also used MSD and Accel 3 bar maps as well. Once you know the vac / pressure voltage range you can scale it appropriately in the calibration.
        Take Care,
        Mr. Torrie R. McPhail
        www.FastPartsNetwork.com
        www.UnleashedTuning.com
        Ford/GM/Dodge/Chrysler/Jeep SCT Custom Calibrator
        2005 Black Twin hairdryer Ford GT 1105rwhp / 954rwtq
        2010 Roush Hammer 560rwhp / 522rwtq

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        • #19
          Originally posted by duster360
          The NGC in the SRT-4 uses a "MAP SLOPE" value and Min/Max pressure values to differentiate between a 2.25 bar, 3 bar, 5 bar,,ect MAP sensor.

          Is the JTEC different in that it has an actual plot or table for the volt/pressure???
          It's completely different.
          Take Care,
          Mr. Torrie R. McPhail
          www.FastPartsNetwork.com
          www.UnleashedTuning.com
          Ford/GM/Dodge/Chrysler/Jeep SCT Custom Calibrator
          2005 Black Twin hairdryer Ford GT 1105rwhp / 954rwtq
          2010 Roush Hammer 560rwhp / 522rwtq

          Comment

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