I guess that's what I'm gonna do. No way I'm gonna spend 1800 at the dealer and they won't guarantee that will fix it.
I am gonna take it by the local muffler shop and have the cats checked just to rule one more thing out.
I've never seen a vehicle with a bad ecm that ran good. Usually they won't run at all or have lots of problems. My 4runner run great.
I feel like they're full of it also but I'm not sure what else to try. Just ride with the CEL on?
I'm having this same problem right now. 2004 V8 4wd
Had a check engine light and local shop said it was bank one sensor one o2 sensor. Replaced it then a day later bank 2 sensor 2 o2 sensor code. A day later bank 1 sensor 1 was back on. Took sensor 2 back to the auto parts store thinking...
