i have a bad o2 sensor after the cat will that make my low a/f ratio and the loss of power. i am going to replace that sensor very soon will. that bring my numbers up or do i have a problem????? this is with all the mods listed in my sign

 

ur # is a bit low with i/y/catback.... maybe cuz u are rolling on 18s w/ system.

 

do u think it could be my bad o2 sensor???

 

Change the O2 and put lighter wheels back on.

 

i replaced the o2 sensor.....what a power difference. it rides so much smoother and effortless.

i cant wait til i put it on the dyno and see how much of a difference it makes.

i should have another graph this saturday

 

wheres teh graph? O_O

 

Placebo > you ...

The rear O2 sesnor after the cat has no say so in A/F ... It only monitors the condition of the 3 way catalyst ..

You're pig rich though.

. Lets see the new graph(s).

Can you post them Vs RPM instead of speed this time

 

Thats what I thought, figured i'd bump a year old thread to get an answer

 

Oh **** monkeys ... I thought it was last week, didn't pay attention to the year

 

wow this was an old thread i ended up replacin the o2 sensor but never got around to the dyno again. maybe i will get a new dyno to see if im still runnin hella rich