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stinger670

September 19th, 2008 6:13 AM

Cat is plugged

Hi,
I have a '99 silverado with a 5.3 L 4wd pickup. The right cat is plugged up...my question is this: Can I cut this cat out and replace it with a test pipe without messing up the computer or set off a check engine light? I have been told if the O2 sensor is before the cat it shouldn't mess with the computer.(codes) There are no safety checks here in Michigan.

Deteoni

September 19th, 2008 5:29 PM

RE: Cat is plugged

Quote:

ORIGINAL: stinger670

Hi,
I have a '99 silverado with a 5.3 L 4wd pickup. The right cat is plugged up...my question is this: Can I cut this cat out and replace it with a test pipe without messing up the computer or set off a check engine light? I have been told if the O2 sensor is before the cat it shouldn't mess with the computer.(codes) There are no safety checks here in Michigan.

If you do not have an O2 -after the cat- then no problem.

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