I have a 2014 gsr. 6500 miles. Recently tuned by RT Tuning. I've been getting an ASC service light and sometimes the 4wd service light only under WOT at around 6k rpms in 3rd or 4th gear. Took it to the dealer and because I thought I needed the awc fluid bled because it looked low but dealership said it was fine and that it could be a g force sensor. 2 dealerships later, problem is still there. I know i am not overboosting because I logged my boost and it doesn't exceed 26psi. This just started happening recently. Car ran like a champ after the tune. Honestly started having problems when the weather got warmer. It is getting super annoying that no one can figure it out. Anyone have any advice or could point me in the right direction?

 

What were the codes? (If you went to a dealership, they should have read them, including the cXXXX codes that cheapo readers can't see.)

 

I got this when my alignment was out and the steering was off centre. A quick alignment to re-centre the steering wheel fixed my issues