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Old 04-15-2008, 08:43 PM   #1
subaru7717
Scooby Newbie
 
Member#: 53922
Join Date: Jan 2004
Location: Poughkeepsie
Vehicle:
2000 Legacy GT
Black

Default Does this sound like a bad cat?

Car: 2000 Impreza RS w/ 140k miles, stock

CEL Codes: P0303 (Cylinder 3 misfire) intermittent

I have replaced
fuel filter
spark plugs (#3 was covered in oil)
spark plug wires
spark plug gaskets and cleaned inside valve cover
cleaned coil pack

When I start the car, exhaust is smoky. Afraid to drive more than 1 mile at a time. When I stop, engine idles too low, and exhaust is sputtering with a sulfer smell. Engine is shaking like it wants to stall.

My question is if my cat is bad, then why do I not a get any CELs pertaining to my cat? I have been driving my sisters car for 2 weeks now trying to fix this, and I am very close to taking it to a mechanic. The reason I haven't is because I could barely afford it.

If I do need to replace the cat, is it OK to purchase a universal and have a muffler shop weld it in place?
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