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Is there a sure-fire way to determine if you cat. converter is bad?
I smell the strong rotten egg smell, it's sluggish, and I'm getting strange occasional codes (1-4-3, 4,3,1)...
The performance is sluggish after I reset the codes, and then once the CEL comes on again, it seems to improve but is still far less spry than 6 months ago...
By the way...
1994 Volvo 850 Turbo
102,000 miles
I put on new vacuum hoses and a new 02 sensor up front, but that rotten egg smell out back, persists, and the car just feel slow.
Thanks,
Shawn
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