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Apr 15, 2014 | 03:54 PM

Lloyd Smale

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Le Mans Master

Joined: Dec 2000

Posts: 5,761

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From: munising MI USA

header question

my chip disabled the air pump and egr. If i put on headers and dont keep the cats will it cause a code if i install o2 sensors in the collector?

Apr 15, 2014 | 03:56 PM

DanielRicany

Melting Slicks

Joined: Jun 2013

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As long as it's not a 1996 it should be no problem.

There are no downstream O2 sensors on Corvettes before 1996 so it doesn't monitor catalytic converter efficiency.

Apr 15, 2014 | 04:36 PM

WVZR-1

Team Owner

Joined: Sep 2003

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Quote:

Originally Posted by DanielRicany

As long as it's not a 1996 it should be no problem.

There are no downstream O2 sensors on Corvettes before 1996 so it doesn't monitor catalytic converter efficiency.

You've mentioned that previously and it's just "not so" - there's a 3d O2 on '94+ LT1's. It's not used in the fuel calculations but it is there.

I believe you'll find it in the right side "post cat"!

Apr 15, 2014 | 05:33 PM

STL94LT1

Race Director

Joined: Jan 2002

Posts: 12,261

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From: O'Fallon Missouri

Since you mentioned a "chip" I'm assuming you have a pre-94 car with no post cat o2 sensors. So, no codes will be set by removing the cats with a system that doesn't monitor the cats.

Apr 15, 2014 | 07:21 PM

Lloyd Smale

Thread Starter

Le Mans Master

Joined: Dec 2000

Posts: 5,761

Likes: 47

From: munising MI USA

its a 92 guys. thanks

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