RVSTi
New member
Just installed my Cobb AP Stage 2 ACN 91 map on my 2005 STi and I am getting this P0037 Heater bank blah blah blah code. Never had this code before, unitl I reflashed. I checked and cleaned the rear O2 sensor and it looks fine. Now I get the code after a few moments after starting. I can reset the ecu, but when I start again after turning it off once, it pops back up. I thought the Cobb AP "toggled" this code off. Any suggestions?