FIRST OF THANK YOU Long story short. I have a tune from ecutek stage 1 by perrin and a catback exhaust.
Incident record.
-catback- installed 2 month ago before CEL
-ecutek flash 1 month ago before CEL
I took to the dealer and told them everything i did to my car since i didnt really care about their warranty and it's the only place i can trust during my undergrad career. I was told by the lead tech O2 sensors(rear) was not sending or receiving signal. I tried flashing back to stock, clear codes and flash to stage 1 clear. but none of them works.
I was ensured by tech at subaru that its very rare that O2 sensors. I was told by dealers not to buy a new sensor but instead go to perrin and ask for a new set of map I bought. clearly that didnt do anything since Perrin folks never have to tamper with that part. My questions is , is it possible that I have a
broken O2 sensor in the
rear? since catback installation did not require touching them. How would that
be broken during installation. and after the dealer cleared my code
instead of havin P0030 and P0134, I have P0031. is it possible that my tuning is just messed up? I looked up all the codes and they
seem pretty similar to each other. all related to the heat circuit O2
THANK YOU GUYS