Ground wire between main cat and cat back

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May 24, 2002 | 01:55 PM

Toy

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From: MA

Ground wire between main cat and cat back

What is it for and how important is it? i've never tried to trace it to its origin so...

May 24, 2002 | 02:00 PM

Dont_Be_A_Rikki

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It goes from the exhaust stud to the chassis!it aids the o2 sensor to give it an accurate reading (IMO). I think it is important and to be honest you can never have enough grounds. I have replaced mine with a nice copper one.

-Ryan

May 24, 2002 | 06:09 PM

Indo Audio

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From: Irvine

Does it really make that big of a difference to the car or no?

May 24, 2002 | 06:11 PM

Dont_Be_A_Rikki

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yes it does! the 3rd gen has grounding issues to begin with much less not keeping the ones that are not there is a bad idea IMO

-Ryan

May 24, 2002 | 07:29 PM

93FD3S

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Joined: Dec 2001

Posts: 1,230

Likes: 3

From: San Antonio

hmmm never noticed ground wire there...

What tha hell...I've never noticed a ground wire from the exaust stud to the frame....unless I over looked it. Where exactly is it? Anyone have any pics or can anyone please take a quick snap shot of the ground wire?......Please....Thanks...Tony

May 24, 2002 | 08:37 PM

IronMdnX

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From: MN

When I put my Apex Gt on i forgot to put the cat/catback ground strap on, my 3k stumble disappeared. I put the ground strap back on and had my 3k sumble again, so i ended up leaving it off for now.