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Educate me on 850 t5 exhaust please.

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MatDesign84
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Joined: 29 Apr 2007, 08:22
Year and Model: 1997,855 T5
Location: Johnson City, TN
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Post by MatDesign84 »

I'm looking at 250000+ and I'm fairly certain the cat is clogged. I'm wanting to consider all my options. Is there a second o2 sensor in the converter? What diameter is the piping? Does it change through the length?

Sorry for my long absence I had a lot of old messages in my inbox.
Currently: 1997, 855 T5 | 1998 Subaru Legacy GT 2.5
Previous: 1997, 850 GLT | 1993, 850 GLT | 1988, BMW 325i, 1990 Volvo 240 DL
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polskamafia mjl
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Post by polskamafia mjl »

There is an 02 sensor in front of and behind the cat but nothing in the cat itself. I think the piping on the stock exhaust is 2.5 inches all the way through.
'All my money is gone and I have an old Volvo.' - Bamse's Turbo Underpants

Current: 1995 Volvo 850 T-5R Manual - Bringing it back from the brink of death
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rspi
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Post by rspi »

Could be a bad turbo. What's it doing? Have you tried pulling the pre-cat o2 sensor and see if it improves?
'95 855 T-5R M, Panther - 22/28 mpg, 546,000 miles
'95 955 T-5R Yellow Wagon, Lemonade, 180,000 miles
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