slagger

iTrader: (1)

well I started to smell alittle exhaust and then now I hear stuff rattling in my Cat, Its a high flow magna Cat w/8000 miles I put on it
my Q is why would it fail so soon could my 160 deg stat cause it or what about my o2 sensors could they cause it?
thanks guys.

koolaid_kid

iTrader: (21)

The thermostat has no bearing on exhaust temperatures or the cat.
Can't see how an O2 sensor would cause cat failure either.

slagger

iTrader: (1)

cool, thats what I thought but I read some place on the web that the o2s might cause it.

Sgt. Spuds

iTrader: (1)

A 160 degree stat can make your car run rich, if its running too cold, and could cause cat failure.

koolaid_kid

iTrader: (21)

I'm not trying to argue, but I ran a 160 stat for 7 years without a tune, and never had any problems. However, I am not sure what too cold would be defined as.

Lethal Z

Can also cause the oxygen sensors to go bad.

flame

iTrader: (13)

With a 160 stat the engine still operates at 180-185 depending on outside temps.

koolaid_kid

iTrader: (21)

Using this same logic, it seems like our cats will fail in the winter. I am confused.

I8ASaleen

iTrader: (9)

If ur O2 sensor is bad there is most definitely a possibility that ur cat could get clogged, and nah a 160* T-stat isn't gonna cause it.