Running Rich???

[O3 pharoh]

Every time I get on my MM I get a heat smell, much like when breaking in new cats, but cats are stock and been on the car for atleast three years. Gas mileage has also dropped quite a bit on the tank. I have the sct tune from lidio and can't figure out why the car seems to be dumping fuel. Anyone have the same issues and possibly an answer or what to look for??

[Local Boy]

O'2 sensors going bad??

ALOHA

[Raudermaster]

Happened to me too, I changed both my O2's (rear's are shut off in the tune) and all was well after that. Also cleaned my MAF/filter and did a fuel filter change for the sake of it.

[O3 pharoh]

Thanks, I will replace the front o2 sensors, and clean up the system again. Thanks for the advice guys, I appreciate it!