Mitsubishi Lancer and Lancer Sportback Newer to the United States, the Lancer line offers a sporty compact sedan, with all of the fine styling of the performance minded Evolution.

03 Lancer OZ rally,Code P0421?

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  #11  
Old 06-26-2007, 08:45 PM
Join Date: Jan 2007
Location: The south
Posts: 1,757
Default RE: 03 Lancer OZ rally,Code P0421?

ORIGINAL: Manybrews

ORIGINAL: kevin10

So,i shouldnt take it to dealer right? just to charge me $100 for what i know it is..
once again, do a search.
if you have an open recall on your car, the reprogramming is free. Cat. converter replacement is free up to 100k miles.
He has 102k.
lol
 
  #12  
Old 06-27-2007, 11:40 PM
kevin10's Avatar
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Join Date: Jun 2007
Posts: 7
Default RE: 03 Lancer OZ rally,Code P0421?

reprogramming for what? Well,not sure about replacing cat converter,gonna set up a time to take it to local mechanic,with the info i have and code. My friend looked at my egr valve and said he thinks it needs replaced and thats whats causing my ses light..
 
  #13  
Old 06-28-2007, 04:48 PM
Manybrews's Avatar
Senior Member
Join Date: May 2003
Location: United States
Posts: 1,187
Default RE: 03 Lancer OZ rally,Code P0421?

ORIGINAL: kevin10

reprogramming for what? Well,not sure about replacing cat converter,gonna set up a time to take it to local mechanic,with the info i have and code. My friend looked at my egr valve and said he thinks it needs replaced and thats whats causing my ses light..
do you actually read the posts in this forum?

its been covered many times, but Ill repeat again... There is a recall for your car. Due to incorrect software parameters, you may damage your cat. converter. New software must me uploaded to your PCM, which your "local" mechanic cant do.
The cat. converter must be replaced, but you are no longer eligable for it under warranty. Either you or the previous owner has choosen to ignore the recall notice sent to you (or them), and as such are now in a position where you will need to pay for the cat., although the software is free.
 
  #14  
Old 06-28-2007, 05:06 PM
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Join Date: Jun 2007
Posts: 7
Default RE: 03 Lancer OZ rally,Code P0421?

and how much would the cat be? or i do i want to know..i just bought a car, i cant afford to pay much now..
 
  #15  
Old 07-07-2007, 05:07 PM
Join Date: Jul 2007
Location:
Posts: 7
Default RE: 03 Lancer OZ rally,Code P0421?




no ive hadnt had that happen yet i just bought mine like 3weeks ago.the only thing that i have wrong is my brakes make a noise when i hit them a little anyone had that problem before?


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  #16  
Old 07-07-2007, 05:09 PM
Join Date: Jul 2007
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Posts: 7
Default RE: 03 Lancer OZ rally,Code P0421?




does anyone know the best turbo to put on the 03 lancer


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  #17  
Old 04-04-2012, 10:50 PM
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Join Date: Mar 2012
Location: Michigan
Posts: 5
Default

wow, I have the same problem. did u ever get it fixed? i changed my plugs, coils, did a fuel system clean, and checked for vacuum leak. still doing it.
 
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