Results 1 to 4 of 4

Thread: 2012 Challenger over boost shutdown P0108

  1. #1
    Tuner in Training
    Join Date
    Nov 2018
    Posts
    19

    2012 Challenger over boost shutdown P0108

    Has anyone been able to get their Challenger to boost beyond 195kpa without the car shutting down on them? We lose throttle when this happens. We cannot raise max map in Engine Diag or else the problem will get worse. I believe this has been talked about before but no solution was brought to light. Possibly a table I need to request to be defined? Watch in the log as the Pratio, map, map(SAE), and the map voltage go haywire the instant the map reading steps past the 195kpa limit which we are limited to. About 4:27 into the log.
    Attached Files Attached Files

  2. #2
    Advanced Tuner coanan's Avatar
    Join Date
    Mar 2009
    Location
    S. Florida
    Posts
    228
    Quote Originally Posted by drumnbasslvr View Post
    Has anyone been able to get their Challenger to boost beyond 195kpa without the car shutting down on them? We lose throttle when this happens. We cannot raise max map in Engine Diag or else the problem will get worse. I believe this has been talked about before but no solution was brought to light. Possibly a table I need to request to be defined? Watch in the log as the Pratio, map, map(SAE), and the map voltage go haywire the instant the map reading steps past the 195kpa limit which we are limited to. About 4:27 into the log.
    Start at post 7

    https://forum.hptuners.com/showthrea...h-supercharger
    2013 Chrysler 300S, 6.4 BGE with 6.4 SRT cam, AIT 18% OD pulley, E-force with 2.62 pulley(12.20 lbs boost??), fastman 84+4 mm throttle body, 1 7/8 kooks long tubes w/hi-flow cats, 3" Magnaflow Cat-back, FTI 2800 stall, Trans built by Hellraiser, Dings Racing valve body and tune, Getrag 3.73, Walbro 400LPH, DW 65# inj. LG aluminum rad. Dual SRT fans. Complete 4 piston Brembo upgrade. Stage one MOPAR springs, XIX X39 22x9 +15 - 22x10.5 +22 with NITTO NT555 265/35R22 - 295/30R22

  3. #3
    Tuner in Training
    Join Date
    Nov 2018
    Posts
    19
    Thank You! Yes a 3 bar map sensor is a solid answer for now. We are pegged at 195 kpa yet still but no shut downs occurred. The map sensor voltage is tamed to the range of 3.8 volts at wot now in a long pull.

  4. #4
    Advanced Tuner coanan's Avatar
    Join Date
    Mar 2009
    Location
    S. Florida
    Posts
    228
    Good to hear you're moving forward. Remember to come back and share if you can add some knowledge.
    2013 Chrysler 300S, 6.4 BGE with 6.4 SRT cam, AIT 18% OD pulley, E-force with 2.62 pulley(12.20 lbs boost??), fastman 84+4 mm throttle body, 1 7/8 kooks long tubes w/hi-flow cats, 3" Magnaflow Cat-back, FTI 2800 stall, Trans built by Hellraiser, Dings Racing valve body and tune, Getrag 3.73, Walbro 400LPH, DW 65# inj. LG aluminum rad. Dual SRT fans. Complete 4 piston Brembo upgrade. Stage one MOPAR springs, XIX X39 22x9 +15 - 22x10.5 +22 with NITTO NT555 265/35R22 - 295/30R22