turbo-back & up-pipe = CEL

rex rocket · 06-19-2002, 03:16 AM

I was wondering if anyone out there has the mrt turbo-back exhuast and up-pipe or something similar. Every once and a while my car through's a p420 code for cat unefficency. Is this common and is their easy fix's out their.

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Mike Kress · 06-19-2002, 08:56 AM

I ran the same set-up as you for about 7000 miles and had one lowcat cel. There are a couple of fixes for this and I would do a search for cel's and figure out what would be best for you. I'm running the Stromung catless down pipe now with the third cat and have a cel all the time. Don't know if I'll go completely catless and get a fix or put the stock downpipe back on. Mike.

rex rocket · 06-19-2002, 01:51 PM

Thanks Mike
i have a cat in the mrt down-pipe. It just runs so nice without the factory up-pipe. There's know way the stocker is going back on. There is a resistor mod. But I would feel better with a easier plug in fix

-jason

06-19-2002, 03:16 AM	#1
rex rocket Scooby Newbie Member#: 18055 Join Date: Apr 2002 Location: IL Vehicle: 2002 wrx silver	turbo-back & up-pipe = CEL I was wondering if anyone out there has the mrt turbo-back exhuast and up-pipe or something similar. Every once and a while my car through's a p420 code for cat unefficency. Is this common and is their easy fix's out their. * Registered users of the site do not see these ads.

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06-19-2002, 08:56 AM	#2
Mike Kress Scooby Newbie Member#: 9291 Join Date: Aug 2001 Location: Washington, WV Vehicle: 2002 WRX almost yellow	I ran the same set-up as you for about 7000 miles and had one lowcat cel. There are a couple of fixes for this and I would do a search for cel's and figure out what would be best for you. I'm running the Stromung catless down pipe now with the third cat and have a cel all the time. Don't know if I'll go completely catless and get a fix or put the stock downpipe back on. Mike.

06-19-2002, 01:51 PM	#3
rex rocket Scooby Newbie Member#: 18055 Join Date: Apr 2002 Location: IL Vehicle: 2002 wrx silver	Thanks Mike i have a cat in the mrt down-pipe. It just runs so nice without the factory up-pipe. There's know way the stocker is going back on. There is a resistor mod. But I would feel better with a easier plug in fix -jason