Originally Posted by
totalengine
I have a 2016 Challenger R/T Scat Pack Auto here that the customer installed an Edelbrock supercharger on, which he took off his previously owned 2014 R/T before he traded it in for the Scat Pack. I had previously tuned his 2014 R/T with the Edelbrock on it, and he brought the Scat Pack to have tuned as well after installing the Edelbrock on it. I am having issues getting the MAP/BARO Sensor to read correctly after imputing the slope and offset for 2 bar. The car immediately goes into limp mode when you start it (only has 3rd gear, throttle light blinks, check engine light, limited to ~2000rpm, runs terrible), and has a check engine light for p0129 - Baro pressure too low.
What i am using for a 2 bar sensor:
MAP Sensor Linear - 46.38
MAP Sensor Offset - 4.8
With this data, i can get the MAP to read correctly with key on engine off for our atmosphere (around 90KPA ; 12.8 - 13.0 PSI), but the Baro pressure does not read correctly. It reads 14.1-14.2 PSI key on engine off. I have tried playing with the slope, offset, minimum MAP and Baro voltages and such, but nothing seems to work correctly. If i lower my offset to get the baro sensor to read correctly (~90kpa), then my MAP sensor will read much lower than atmosphere (~85KPA). If i raise the offset back up to get the MAP to read correctly, then my Baro will be way high (~97-98KPA)
I cant seem to get the baro and map to read the same with key on engine off.
I even stole a 3 bar MAP sensor we have on a 2014 turbo jeep here at the shop and plugged that in and inputted the correct slope (61.85) and offset (6.8) for that sensor and it does the exact same thing, except the Baro will read even higher (~110 KPA), while the MAP is reading correctly (90KPA), which rules out bad MAP sensor in my opinion.
The only way i can get the car to idle and run correctly with no check engine lights and baro and Map to read correctly is to put the stock sensor back on and put stock values into slope and offset.
Is there something different about 2016 MAP sensor and/or data that i am unaware of? What am i doing wrong? These values are the exact same values that i used for the same Map sensor on his 2014 R/T and they worked perfectly. Anyone have any ideas or have had the same problem? I have attached my tune file, along with the stock tune file, and a quick key on engine off scan. As you can see i have every baro PID open that i could find lol.
Thanks,