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Help!!!!!!!!!! How do I get my check engine light off?

Old Jul 25, 2011 | 12:01 AM
  #21  
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From: Illinois
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I'm having this same issue now too It won't go away! My car's an 03 what can I do to make the light go off and STAY off??
 
Old Jul 25, 2011 | 08:01 AM
  #22  
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This thread is 3 years old. What's your issue?
 
Old Jul 25, 2011 | 10:14 AM
  #23  
oh3monteSS's Avatar
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From: Illinois
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I replaced my cat with a magnaflow one and now the check engine light will not go off. I can have it shut off but it just keeps coming back on every day or 2 and then stays on till I shut it off... What can I do to make it stay off for good?
 

Last edited by oh3monteSS; Jul 25, 2011 at 10:50 AM.
Old Jul 25, 2011 | 10:58 AM
  #24  
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Going to probably need to get the code P0420 tuned out of your PCM, or start researching how to make an 02 sensor fake.
 
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