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Rotten Egg Smell

isthatacop
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isthatacop Member

isthatacop

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I have a 2003 Boxster Tiptronic and recently noticed a rotten egg smell eminating from the car. It's not consistent - sometimes on startup, mostly when I punch the gas over 3500 RPMs. I'm concerned that it's the catalytic converter. I haven't had any issues with the car (it has 72,000 miles) thus far. Any thoughts?

Thanks!

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rprieto Member

rprieto

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Something is certainly going on with the catalytic converter but it may be caused by something else. For example, I received a bad “new” MAF sensor some time ago. It smelled foul soon after it was replaced. However, when I unplugged the sensor the smell went away on my 986. I assume you have don’t have a CEL but you might want to check if one is "pending" which was the case with my vehicle.

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