I have just over 100k miles on my 2000 max. I noticed that exhaust smells funny lately. I haven't noticed any lost of power and haven't had SES light on. Someone told me it's could be a Cat. Any other suggestion?

 

Explain the smell

 

It's hard to explain. It's not the usual gas smell. More like burned plastic mixed with welding smell.

 

Oh that sounds nasty.

 

as my wife puts it: "you car smells like a..."

 

it's not the car nikal, it's the city. chicago smells like @$$ !

 

Haha. On a longshot, maybe the air to fuel ratio is off?

 

Most likely a bad 02 sensor, creating the "rotten egg" smell....

 

your muffler may be bad, the smell may be the insulation burning.

 

i have 76k on my 00 max and my brother told me on sunday that my muffler is shot... time for cattman!!

 

I have the same problem (a little less often now). I took my Max to Nissan but thay tald me that it's not O2 sensor (I changed mine like 6 month ago) and it's not a cat but it's a addictive the gas company' s are adding for winter and since our cars are burning a little rich at high RPM that what smells.

 

May I recommend this product, it does wonders for my car.



It's a new product that's on sale at Pepboys or anyother automotive store.

 

I know it's not a muffler. I recently put Y-pipe and a custom cat-back.
do i need to go to a dealer to check O2 sensor? How do I check the Air/Fuel ratio?