I recently purchased a used JB4 for my 2021 Kia Stinger GT AWD and everything was working great for about a month. However, yesterday I went WOT from a slow roll for the first time in about a week and everything seemed fine. After turning the car off, grabbing something and then turning it back on, the car would not rev past 2k rpm even on heavy throttle while driving. It was like I was bouncing off redline. This is shown in the log that I renamed. I pulled over and could find nothing wrong. No lights on the dash, no codes, no weird noises, and everything under the hood and under the car seemed visually fine. The car acted perfectly normal while staying under 2k rpm and had no issues shifting. The only thing I could think of was that it went into limp mode due to overheating transmission. This morning I decided to do some more testing and this time found that sometimes it would act fine, but others it would "redline" after an upshift. It happened in both map 2 and map 0, however, I was not able to recreate it during 3rd gear pulls. The car will rev fine in park but not while driving. Lastly, in one of my first map 2 pulls, the car acted fine under moderate throttle but I noticed an unusual pop from the exhaust upon shift. Typically with my car it will only pop when I launch it. Im not great at reading logs so any help would be appreciated. Thanks
Current Mods:
Jb4 w/ Bluetooth
BMS Intakes
MBRP Catback Exhaust
BMS Catchcan
BMS Diff Brace
HKS M45iL Spark Plugs @ 0.022"
Current Mods:
Jb4 w/ Bluetooth
BMS Intakes
MBRP Catback Exhaust
BMS Catchcan
BMS Diff Brace
HKS M45iL Spark Plugs @ 0.022"
