Bad Smell

[hav]

Hi Guys,
My 1999 Camry (1MZ) is smelling bad (not burnt oil smell) when i push the throttle past 3K RPM. I had the P0420 two months back. Cleared the codes and drove almost 2K miles. Code has not returned yet. I suspect my cats are on its way out. My question is my car seems to have two cats. One in the front of the motor and one before the resonator. Which one needs replacement? Or do both need replacement? Should I replace them now or wait till the codes come back again?
Car has 152XXX and runs strong and getting good mpg's.
Thanks

[ONE_to_HATE]

Originally Posted by hav

Hi Guys,
My 1999 Camry (1MZ) is smelling bad (not burnt oil smell) when i push the throttle past 3K RPM. I had the P0420 two months back. Cleared the codes and drove almost 2K miles. Code has not returned yet. I suspect my cats are on its way out. My question is my car seems to have two cats. One in the front of the motor and one before the resonator. Which one needs replacement? Or do both need replacement? Should I replace them now or wait till the codes come back again?
Car has 152XXX and runs strong and getting good mpg's.
Thanks

if you've taken it to the dealer, they'll prolly tell you to switch gas to a different brand.. and it helps- but the problem stays. I was told that it was the cat. on the exhaust manifold- so i dumped, - when i say "dumped" .. i mean i spent ALOT of money on a replacement. .. but it was NO help at all.

- a few of the subaru guys have the same problem.. and they can almost swear its the one before the resonator. im really tempted to get mine replaced too just cuz its fkn emabrassing when people are in the car saying.. " what's that smell? ". LOL.

[the_professional]

Originally Posted by ONE_to_HATE

if you've taken it to the dealer, they'll prolly tell you to switch gas to a different brand.. and it helps- but the problem stays. I was told that it was the cat. on the exhaust manifold- so i dumped, - when i say "dumped" .. i mean i spent ALOT of money on a replacement. .. but it was NO help at all.

- a few of the subaru guys have the same problem.. and they can almost swear its the one before the resonator. im really tempted to get mine replaced too just cuz its fkn emabrassing when people are in the car saying.. " what's that smell? ". LOL.

O/T but i have the same issue with smells, in the summer when running the car with no AC on after running it earlier in the day I get a nasty smell.
so when people go "whats that smell?", I go I don't know what your talking about.

but what necessarily causes that? like bad gas from 'cheap' no name gas or literally bad gas?

[hav]

Yeah. You might be right as the previous owner ran over something and there is a sign of impact on the rear cat. The part is pretty expensive. I am debating whether i would buy it immediately. No body apart from my wife gets in the car...Maybe I will wait.