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05-18-2017, 09:38 AM
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#1 |
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Registered User
Join Date: Aug 2016
Location: Mount Carmel Illinois
Posts: 1,321
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Dying cat
1998 s10 zr2 4.3 4l60e 4x4, and my cat converter is dying, causing a missfire under load, and all that. know its the cat as it has the po420 (hahaha gm) code. anyway to fix this cheap?
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1994 k1500, Oldredz71(ext shorty 4x4 6 in lift) 1998 S10ZR2 2005 Silverado 2500hd(tow pig) Made in the USA, just like my trucks 
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05-18-2017, 12:36 PM
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#2 |
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Registered User
Join Date: Oct 2009
Location: canton ga
Posts: 12,729
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Re: Dying cat
Does it have to pass emissions ? If so you will have to get another cat converter .
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05-18-2017, 01:24 PM
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#3 | |
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Registered User
Join Date: Aug 2016
Location: Mount Carmel Illinois
Posts: 1,321
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Re: Dying cat
Quote:
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1994 k1500, Oldredz71(ext shorty 4x4 6 in lift) 1998 S10ZR2 2005 Silverado 2500hd(tow pig) Made in the USA, just like my trucks
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05-18-2017, 04:43 PM
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#4 |
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Registered User
Join Date: Oct 2009
Location: canton ga
Posts: 12,729
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Re: Dying cat
If no inspection I would cut that sucker off and put a piece of pipe in its place .
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05-18-2017, 09:33 PM
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#5 |
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Registered User
Join Date: Sep 2009
Location: Monroe,Iowa
Posts: 4,370
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Re: Dying cat
You will have to get your ECM flashed because the O2 after the cats will cause a Check Engine Light! I think
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05-27-2017, 12:19 PM
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#6 |
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Registered User
Join Date: Aug 2012
Location: error 404 location not found
Posts: 816
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Re: Dying cat
You can do what i did and put a fouler in front of your o2 sensor. Its what alot of dudes do when they eather gut or straight pipe their cat, but being a 98 ya might have to reflash it.
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1995 s10 blazer 4.3 1967 c10 350/350 fleet short 1993 s10 blazer 4.3l 4l60 RIP 6/20/14 2000 mercury sable Thats a how I roll |
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