Help! My 2020 WRX is showing really low AF learning 1 values. I’m not sure why, all the other values are staying relatively normal and this started out of no where a few days ago. I’m on a stage 1 91 octane tune +big SF. The only mod I’ve done was the Cobb big sf intake and it was about 8 months...
Hi, since last week my AF learning is up to +18% only when cruising.
At idle it stays near -3% to + 5%.
It's a WRX 2018
Mods are :
IAG Full tgv
Also it makes a wierd noise at 2000 rpm