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my v6 s.e. seems to have a funny rotten egg smell every once in a while someoen told me it could be the cat. the smell is simialr to well water but its comming from the car.
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sounds like a cat. problem to me.
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Originally posted by cvkillacontour98:
my v6 s.e. seems to have a funny rotten egg smell every once in a while someoen told me it could be the cat. the smell is simialr to well water but its comming from the car.
O2 sensors(they are called hego when you put it on the comp.)I had the same problem,I switched my O2's out and the problem was gone 
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Originally posted by cvkillacontour98:
what is hego?
HEGO = Heated Exhaust Gas Oxygen Sensor
Basically, it is a heated O2 sensor.
There is a good article on O2 and heated O2 sensors at http://www.asashop.org/autoinc/dec2002/mech.cfm
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for the record, I have brand new o2 sensors and the smell is still there for me... would this lead to bad CAT?
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You will get that smell anytime you have raw unburnt fuel going down the exhaust into your catalytic converter. Most often it happens under acceleration and it can happen with new or old cats. It just means you are running a tad rich and probably won't hurt anything as most cars will do it. If you never smelled it I would think it odd honestly though a well tuned car would minimize it.
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i must have been dumping large amounts of gas into my cat. i had the egg smell bad sometimes. 
Oo (xxx)oO
o xxxxxxxx o
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