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Burnt the Cat....where do I start? 200 1986

posted by  Aye Roll on  Mon Jul 19 20:41 CST 2004
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last visit: Tue Oct 14 21:08 CST 2014
[RELATED]

I'd look for a bad temp sensor, or broken wire/bad harness to the temp sensor. This would make it run very rich all the time.
Another possibility is a bad fuel pressure regulator- if the idle changes when you disconnect the vacuum hose, however it's probably OK. A fuel pressure test would confirm this, but it can often cost as much to have a shop do the test as it does for a new regulator... you decide there.
The temp sensor is not expensive and is definitely a good place to start diagnostics.
The cat runs about $125 from various online sources. You don't have to spend $500 for the Volvo one.
--
Rob Bareiss, New London CT ::: '87 244DL/M47- 230K, 88 744GLE- 220K, 82 245T-181K Also responsible for the care and feeding of: 88 745GLE, 231K, 87 244DL, 239K, 94 855GLT 189K






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