Mitsubishi Mirage This sport compact offers economy without compromising comfort.

00' Mirage 1.8 Engine light

  #1  
Old 09-24-2008, 09:32 PM
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Join Date: Sep 2008
Posts: 1
Default 00' Mirage 1.8 Engine light

OK so here it is, have a 2000 Mirage DE auto 1.8. I'm getting a PO420 code for a bad catalitic converter. Pulled the part and it doesn't seem bad.....??? Current plan is to replace the part but, seeing as this is a $$$ eater looking to see if anyone knows if it could be throwing a false code.

Facts:
1. has stalled a couple times on cold start
2. if I clear the code it comes back in a couple of days

That's all I got.

Any help is much appreciated!
 
  #2  
Old 09-29-2008, 08:03 PM
Join Date: Jul 2006
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Default RE: 00' Mirage 1.8 Engine light

go to a scrap yard and get a new cat and just bolt it on. or, upgrade your exhaust and go with a test pipe. There's a way to wire up the 02 sensor so that it doesn't throw a CEL, but i don't know what it is. google it, or try going to mirageforums.net and search. i've seen it done on a friend's car, but since i've still got the cat on mine i don't know the bypass off hand.
 
  #3  
Old 10-02-2008, 02:13 PM
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Default RE: 00' Mirage 1.8 Engine light

ARE YOU SURE IT IS THE CAT BACK OR JUST THE O2 SENSOR
 
  #4  
Old 10-02-2008, 04:20 PM
dsm1990gsx's Avatar
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Default RE: 00' Mirage 1.8 Engine light

Your gonna need a catalitic converter and you wont find one at a junk yard, they usually cut them out for $$$. If you run a test pipe in place of the cat converter you'll need a "dummy" o2 sensor which can be gotten anywhere.

As for the stalling on cold starts, a bad cat converterwont cause that.
 
  #5  
Old 05-03-2013, 04:55 PM
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usually its the sensor and not the cat. i would try switching out the sensor first and then if that fails the catalytic converter. cheapest solutions first.
 
  #6  
Old 05-03-2013, 10:46 PM
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Thanks for replying to a five year old thread.
 
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