I have a '04 WRX, 31k miles. 100% bone stock
I've been throwing a CEL for about a month now and finally got around to scanning it because it started to idle funny. Here are the codes:
P0546 - Exhaust gas temperature sensor circuit high input
P0303 - Cylinder 3 misfire detected
I did some research on each code but I was unable to find a correlation between the two codes (maybe it's two separate problems?) Also it seems the P0546 code typically only applies to aftermarket exhaust and my WRX is completely stock. If anyone has any ideas of what might be going on (before I start tearing out potential bad parts) I'd appreciate any advice and input.
Thanks in advance