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I am no tuning expert but I did stay at a Holiday Inn. Hanging throttle could be a screwy air flow table. BTW only the 2015-2016 HC use MAF all other challengers use MAP (HC and Demons also use TMAP). My initial tune had a hanging throttle but I don't remember offhand if it was just the throttle air flow table or something else in torque management, I will take a look later today to see what the fix was. Have you taken a log of the behavior? If you are applying light throttle and the car is jerking it could be that the PCM sees a higher torque than expected and is closing the throttle. Here is where logging pedal voltage, throttle voltage, throttle torque source, actual and expected torque can come in handy. What tuner are you running Diablosport or HP tuners? If HP tuners I can help but if DS you need to find a tuner with CMR software.
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2015 Challenger RT+ (non-STP)
8lb Magnuson w/ Innovate PSB-1 wideband/boost/shift light gauge
Corsa extreme (2.5")
4" Aluminum one-piece driveshaft
Hellcat bottom airbox
Stainless Works LT headers (2" primaries)
Barton shifter assembly w/ Lou's short shaft and Speed Dawg knob
Comp Cam 7929 & 7748 push rods (gives slightly more lifter preload)
A2speed aluminum coil and valve covers (built in catchcan)
Last edited by ChallyTatum; 05-01-2019 at 07:31 AM.