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.

P0403 Problem '02 Lancer

Old 09-13-2012, 05:12 PM
Junior Member
Thread Starter
Join Date: Sep 2012
Posts: 1
Default P0403 Problem '02 Lancer

Hi. I've got one of those EGR valve problems. The trouble code says:

"P0403 EGR Solenoid Circuit Problem"

I had a mechanic clean out the EGR valve and he said the valve is OK. He checked all the hoses and he thinks they are clear. He was reluctant to start replacing the valve or the solenoid, etc and spending more money without really knowing the problem. That's why I posted here.

He said when you give it gas there is supposed to be a vacuum going through one of the hoses going to the vacuum valve. He showed me that there seems to be a constant vacuum on this valve because when he connects the hoses to the valve the engine runs rough and wants to stall. As he left things, he crossed the two hoses going to the vacuum valve, and the engine runs fine. However, the problem is not fixed after clearing the trouble light several times.

Is there enough information here to identify what I should do next to fix the problem? He did clean out the EGR valve and said he believes it is working as it should.

Thanks for any feedback!

Related Topics
Thread Starter
Last Post
Mitsubishi Montero & Montero Sport
06-08-2017 01:06 PM
Mitsubishi Montero & Montero Sport
01-01-2014 05:36 PM
3rd Generation
09-30-2012 07:10 PM
2nd Generation
01-26-2012 09:52 PM
3rd Generation
09-07-2010 06:59 AM

Thread Tools
Search this Thread
Quick Reply: P0403 Problem '02 Lancer

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 and affiliated sites.