Page 1 of 1
1997 993 Smog
Posted: Fri Mar 27, 2026 4:30 pm
by REJ
Hello Forum,
I’m helping a freind evaluate what to do with the 97 993. He’s owned it since new, blue convertible roof, light gray. The Interior is close to excellent. Will need tires. It’s been sitting in the garage for the last 4 years.
Problem is it won’t smog. He was told there are some kind of tubes in the engine that get clogged and prior to him parking it he was told it will be harder and harder to pass smog.
Any thoughts on the cost to get it back on the road. What are the tubes that get clogged. I’m a V8 guy, don’t know flat 6’s.
Re: 1997 993 Smog
Posted: Sat Mar 28, 2026 1:08 pm
by REJ
The car has 130k miles on it.
Re: 1997 993 Smog
Posted: Sat Mar 28, 2026 2:54 pm
by blueline
Maybe there will be someone in the Carpokes family who has some thoughts on what might be wrong with the emissions systems of your friend's 911. If not, my suggestion would be to take it to a Porsche dealer or other Porsche service specialist and get their advice on what might be needed and how to proceed. An initial best-guess diagnosis or opinion regarding possible causes and cures might be free and if not, possibly not excessively costly.
Re: 1997 993 Smog
Posted: Sat Mar 28, 2026 3:04 pm
by Tom
blueline wrote: Sat Mar 28, 2026 2:54 pm
Maybe there will be someone in the Carpokes family who has some thoughts on what might be wrong with the emissions systems of your friend's 911. If not, my suggestion would be to take it to a Porsche dealer or other Porsche service specialist and get their advice on what might be needed and how to proceed. An initial best-guess diagnosis or opinion regarding possible causes and cures might be free and if not, possibly not excessively costly.
I asked CarBot in
this thread and think he nailed the answer.

Re: 1997 993 Smog
Posted: Sat Mar 28, 2026 3:19 pm
by blueline
Tom wrote: Sat Mar 28, 2026 3:04 pm
blueline wrote: Sat Mar 28, 2026 2:54 pm
Maybe there will be someone in the Carpokes family who has some thoughts on what might be wrong with the emissions systems of your friend's 911. If not, my suggestion would be to take it to a Porsche dealer or other Porsche service specialist and get their advice on what might be needed and how to proceed. An initial best-guess diagnosis or opinion regarding possible causes and cures might be free and if not, possibly not excessively costly.
I asked CarBot in
this thread and think he nailed the answer.
I saw that! More impressive work from Mr C. Bot!!
