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Discussion Starter · #1 ·
Hi everyone, just have a quick question...
I am looking at a 2001 rs and the car has 133 on it with head gaskets timing belt and water pump just replaced.
it has headers, cai and cat back exhaust. it is throwing P0037 code. now i have been told that this motor throws that code with headers and should not hurt anything(performance and gas milage ect)
just would like to hear any ideas
any help is appreciated
steve
 

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They call me Garrett
98 RBP V4 STi Swapped RS
Joined
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4,164 Posts
headers shouldn't cause this if there is a cat in the system.

also i have heard of the spacer (was actually looking for the link for you as we speak) though i have no idea if it works or not
 

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They call me Garrett
98 RBP V4 STi Swapped RS
Joined
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4,164 Posts
Wouldn't the engine default to a rich setting or are the 02's in our car's mainly to check on the cat?
i've had my CEL on because of O2 sensors since i've had my car. Doesn't feel down on power and i am still getting 25mpg so..

haha

also am running catless now and nothing has changed since i went catless
 
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