lancey3
NAXJA Forum User
- Location
- Columbus Ohio
Is there like a break in period with a new cat? My MPG is suffering and i'm wondering if the brand new cat that I put on is the culprit.
lance
lance
JNickel101 said:did you replace your O2 sensors too?
lancey3 said:1998
lancey3 said:Ok update i unplugged that battery for 15 mins and reset the ecu i'm getting about 15.7 mpg vs the 14.4 i was getting. Would buying a new O2 sensor help me get above where i was originally at 16.6?
JNickel101 said:Yes....definitely wont hurt it....they should have changed the O2 sensors when they changed your Cat.....
TNT said:One other possibility is your old converter started to break up and now there are some pieces stuck in muffler/exhaust restricting the flow.
lancey3 said:Just put a Cat-back on.