Carbon Build Up-Rich Condition?

bcl55 · 10-20-2002, 09:19 AM

Just wondering if anyone on the board would now why a car would start to run rich all of a sudden.

I have started to notice a lot more build up of carbon on the tailpipe. More so than usual. This has just started to happen over the last couple of months.

Is their anything that would cause an engine to do this i.e. weather?
Any help would be much appreciated!

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bcl55 · 10-20-2002, 09:22 AM

I forgot.

I have a Club Spec Kit with a catless uppipe installed.

I also live in Toronto, Canada and the temperature is starting to drop for the season.

d00f · 10-20-2002, 10:33 AM

Not 100% sure what's in a club spec kit, but if you're fooling the computer to change the mixture and such then that may have something to do with it. Besides that, fuel pressures?

-Michael

HndaTch627 · 10-20-2002, 10:56 AM

well the car runs stupid rich as it is, unless it's bogging or hard starting you are fine.

Jeremy

sdecker · 10-21-2002, 09:22 AM

I have similar mods to you (TXS stage 2 with PDE catless uppipe). I get a lot of buildup at the tailpipe also, but I have just learned to ignore it. Some days you will be running richer than others. From what I've seen on I-club, just about everybody who has some cats missing has the same thing.

I doubt you can do anything about it.

If you do find something though, let us know. I've resigned myself to just dealing with it and using a little metal polish on the exhaust tip occaisionally.

Scott

10-20-2002, 09:19 AM	#1
bcl55 Scooby Newbie Member#: 12007 Join Date: Nov 2001 Location: Barrie, Ontario Vehicle: 2002 WRX Blue	Carbon Build Up-Rich Condition? Just wondering if anyone on the board would now why a car would start to run rich all of a sudden. I have started to notice a lot more build up of carbon on the tailpipe. More so than usual. This has just started to happen over the last couple of months. Is their anything that would cause an engine to do this i.e. weather? Any help would be much appreciated! * Registered users of the site do not see these ads.

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10-20-2002, 09:22 AM	#2
bcl55 Scooby Newbie Member#: 12007 Join Date: Nov 2001 Location: Barrie, Ontario Vehicle: 2002 WRX Blue	I forgot. I have a Club Spec Kit with a catless uppipe installed. I also live in Toronto, Canada and the temperature is starting to drop for the season.

10-20-2002, 10:33 AM	#3
d00f Scooby Specialist Member#: 6000 Join Date: Apr 2001 Location: Ottawa, Canada Vehicle: 2000 GC8 STi V4 swap BRP	Not 100% sure what's in a club spec kit, but if you're fooling the computer to change the mixture and such then that may have something to do with it. Besides that, fuel pressures? -Michael

10-20-2002, 10:56 AM	#4
HndaTch627 Scooby Guru Member#: 6551 Join Date: May 2001 Chapter/Region: MWSOC Location: Carol Stream, IL Vehicle: '01 GC8 Dinged STM '09 Concours 14 ABS Black	well the car runs stupid rich as it is, unless it's bogging or hard starting you are fine. Jeremy

10-21-2002, 09:22 AM	#5
sdecker Scooby Specialist Member#: 14717 Join Date: Jan 2002 Chapter/Region: South East Location: Road Atlanta Vehicle: 2002 WRX, WR Blue Complete n00b Racing	I have similar mods to you (TXS stage 2 with PDE catless uppipe). I get a lot of buildup at the tailpipe also, but I have just learned to ignore it. Some days you will be running richer than others. From what I've seen on I-club, just about everybody who has some cats missing has the same thing. I doubt you can do anything about it. If you do find something though, let us know. I've resigned myself to just dealing with it and using a little metal polish on the exhaust tip occaisionally. Scott