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Gutted cat threw a CEL

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Old April-21st-2003, 07:59 PM
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Gutted cat threw a CEL

I seached for this but the seach wasn't working. So sorry if this is old news.
I gutted out my cat and it threw a CEL. The ECU said the second O2 wasn't getting hot enofe. My question is can i put a resistor on the 2nd O2 to kill the CEL? I was going to have a pipe made to replace my cat and down pipe then move the 2nd O2 closer to the manifold but, they wouldn't do it. Would this work?
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Old April-21st-2003, 11:22 PM
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Similar problem with mine. I totally removed the second cat. Within a month I got a CEL as well. I had to put it back on, it did sound and feel better without it though.
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Old April-21st-2003, 11:55 PM
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Tim did you gut the first or second catalysts?
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Old April-22nd-2003, 02:11 AM
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you sound surprised that this happened
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Old April-22nd-2003, 07:28 AM
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I gutted out the primary catcause I'm sprayin. I wasn't sure if it would through a CEL because I know people who did it and they told me that it didn't cause a CEL. I just want get ride of it.

I didn't have 2 cats just 1 with a resinator
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Old April-23rd-2003, 11:48 AM
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Yeah as Edwin said, how are you suprised? The second O2 sensor moniters the catalyst, so gutting it is like removing it...which will always throw a MIL...
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Old April-23rd-2003, 01:42 PM
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I'm not in a state of shock. I just wanted to know if anyone knows how to fool the ECU to get rid of the cel.
I DID NOT ask if this surprised me. It didn't. I was hopin it didn't throw a cel but it did. Now that it did I just would like some suggestions. What i don't want is "DUH why are you suprised"
That dosen't help, it wastes space!
Aight Later
Tim
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Don't take it the wrong way just need help not opinions.
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Old April-23rd-2003, 02:49 PM
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I apologize, I didn't mean to critiicize I was just pointing out that it was a given that the MIL would come on...What you need is an O2 signal modifier like what "Phantom Cruiser" is using. She is (or at least was) using a 4-2-1 header with no cats, and used a modifier to fool the ECU. This is the only ECU problem our proteger's have that is easily cured that I know of....I would suggest PM'ing her to get more info...
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Old April-23rd-2003, 09:27 PM
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Sorry i really appreciate all the feed back its just every time i post I get more opinion then help. Thanks I'll check into it.
But I also herd putting a resister could solve the prob.
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Tim
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