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.

P0304 and P0421 Lancer 2006

  #1  
Old 06-18-2014, 01:58 PM
Junior Member
Thread Starter
Join Date: Jun 2014
Posts: 1
Default P0304 and P0421 Lancer 2006

Hello,

My car is a Lancer ES 2006.

I have two code, P0304 and P0421:
* P0304 : Misfire code, I just changed sparkplug 6 months ago, the car drive good. I dont know what is the problem?
* P0421: I have 70 000 miles, I'm not very speed in road, I don't think its catalyst.

I think change a downstream sensor, Can some body know exactely where is the downstream sensor? If you have video, TSB,... I will change it by my self.

Thank you very much.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
kingkingwolf
Mitsubishi Lancer and Lancer Sportback
16
10-29-2013 08:08 PM
kevin10
Mitsubishi Lancer and Lancer Sportback
16
04-04-2012 10:50 PM
rford69
Mitsubishi Galant
1
04-08-2011 09:08 PM
se7en
3rd Generation
8
10-06-2010 10:17 AM
thesammythecurse
Mitsubishi Galant
5
04-27-2010 05:25 PM


Thread Tools
Search this Thread
Quick Reply: P0304 and P0421 Lancer 2006


Advertising
Featured Sponsors
Vendor Directory

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.