does this happen? my carsound went out recently and im wondering if i should replace the O2 sensor too... any ideas for a better cat?

 

It could have happened if you were running really rich. Did you put in any octane boosters?

 

no, no octane boosters... also i noticed a dramatic consumption of fuel lately.... is that a characteristic of a bad cat and sensor?

 

How many MPGs you getting before and after?

 

right now, im at 90 miles and the needle is half way... i havent thrown a code yet, but im sure it will come really soon...

 

I like to know too, my gsr recently is eating up gas mileage too. I got 100miles and it's half tank already and I done a full-tune up not too long ago. Havn't got any check engine light either.

If you fix your problem, let me know cuz gas prices is killer now especially at $2.42 for premium unlead...

 

hum.. I might be having the same problem.. 100 miles and half tank..
I thought this is normal.. lol..

 

250/tank
stock cat

250/ tank
gutted cat
50K

Missouri: Land of no Emissions testing

o2's Hate race gas.......

 

a lot of states don't have emissions testing in rural counties.. missouri is one of them.. if you live around STL or KC you do though..

 

ya, thank god for "Springpatch"