Re: Runs great, then like crap...bad cat? - Saab 900 Bulletin Board - Saabnet.com
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Hello,
Something else to look at would be the ignition module/amplifier and or hall effect sensor/crank sensor. I have seen them fail that way often. I usually car a spare ignition module and will plug it in when it acts up. Or you could check for spark or injector firing. This can cause the ignition time to jump or skip giving you a misfire.
Any misfire rich or lean can overheat the cat causing your sulfer smell. This can also kill the cat. I was always taught that a cat doesn't just die. There is always a reason weather that reason has been repaired yet or not. Ofcourse if your cat has already melted it is possible for it to move around in its housing and at times clog the exhaust completely. Good Luck, Bernie
_______________________________________
George Riggin Specialty Automotive
Current Saabs
1993 900 Turbo Conv.
1993 900 Turbo Conv. Auto
2003 9-3 Conv
2004 9-5 Arc Sedan
2005 9-3 SS 4 door
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1986 900 Turbo Conv
A few parts cars also
Posts in this Thread:
- Runs great, then like crap...bad cat?, Jawerdna
, Mon, 29 May 2017 07:18:35- Any news? n/m, U2bC, Sun, 4 Jun 2017 18:01:19
- COMMON PROBLEM... TEMP SENSOR on manifold, Used to be Chaz, Fri, 2 Jun 2017 08:16:36
- Re: Runs great, then like crap...bad cat?, Bernie
, Mon, 29 May 2017 17:51:58 <-- Viewing This Message - Re: Runs great, then like crap...bad cat?, K-Saab
, Mon, 29 May 2017 07:47:37
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