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Originally Posted by mambo77
I'm getting an increasingly bad sulphur smell at idle. Replaced the catalytic converter (180,000 miles) and keep a clean air filter, but the smell persists.
Does anybody have experience with this, and does the Oxygen Sensor sound like the way to target this problem?
Also, if it the 02 sensor, is it a difficult replacement?
Many thanks!
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The sulfur smell is coming from an overheated converter caused by too rich a mixture. Unless the underlying cause is found, the cat will be destroyed again. Possible causes are fuel pressure too high, sticking injectors, maf sensor, oxygen sensor, etc. You need to get it checked very soon or otherwise another cat...