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Old Oct 21, 2009 | 12:51 PM
  #1  
garagegirl's Avatar
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Joined: Oct 2009
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From: Kansas
Default Hey There!

I wanted to say hi to everyone! I have a 2003 Monte SS that I have been wanting to do some mild mods on, I think I came to the right place.

I'm off now to dig through the old posts to see if I can solve that blasted P0420 code problem.
 
Old Oct 21, 2009 | 12:55 PM
  #2  
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Welcome

Install an aftermarket catalytic converter recently?
 
Old Oct 21, 2009 | 03:15 PM
  #3  
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Welcome.
 
Old Oct 21, 2009 | 05:23 PM
  #4  
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Welcome to the MCF family. I agree with Mike, did you just install a hi-flow cat"?
 
Old Oct 21, 2009 | 07:01 PM
  #5  
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welcome
 
Old Oct 21, 2009 | 09:00 PM
  #6  
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welcome
 
Old Oct 21, 2009 | 09:33 PM
  #7  
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Welcome
 
Old Oct 22, 2009 | 10:56 AM
  #8  
garagegirl's Avatar
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Joined: Oct 2009
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From: Kansas
Default cat

I did install a Magnaflow cat - 15,000 miles ago, just now getting the light. (of course the dealership replaced the o2 sensor twice trying to figure it out. Just can't find a good mechanic these days)

Think I'm just going to buy a new PCM with the code blocked, get a little extra zip as a bonus.
 
Old Oct 22, 2009 | 11:03 AM
  #9  
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Bingo.

It's a shame you wasted all that money on O2 sensors.
 
Old Oct 22, 2009 | 11:23 AM
  #10  
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Welcome to the forum.
 



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