IW STi Forum banner
#problems
1-2 of 2 Results
  1. 2015+ STI Discussion
    I'm not sure where to post this but I am out of ideas and stumped. I'm experiencing some sputtering and running rich while WOT passing 5-6k rpms. The problem slowly began as a slight power loss. Tuner detects slight misfires on cylinder 1 and 4 (already swapped coilpacks) motor was rebuilt 10k...
  2. Warranty / Service Issues
    I have a 2020 sti. I had it on stage 1 that does not require any mods. I flat foot shifted the car and didnt seem like there was any problem at that time. 2 days later, I get a cylinder 4 misfire and white smoke was coming out on cold starts and my coolant was low. I cleared the code because i...
1-2 of 2 Results
Top