Logo Automobile Information Add Site to Favorites  
Auto Repair
Auto Repair Home
Auto Repair Ask a Car Repair Question
Auto Repair Car Repair Question Archive
Auto Repair Repair Troubleshooting
Auto Repair How to Repair or Service
Auto Repair Car Repair Forum
Auto Repair Auto Repair Manual
Auto Repair How to use Diagnostic Tools
Auto Repair Auto Term Abbreviations
Auto Repair Brake Replacement Guides
Auto Repair Service Engine Soon Light
 
Popular Site Links

  

Auto Repair Maintenance Schedule
Auto Repair How Does it Work?
Auto Repair Car Repair Video Series
Auto Repair Car Safety Inspection
Auto Repair Timing Belt Marks
Auto Repair Drive Belt Routing Diagrams
Auto Repair Trouble Code Table
Auto Repair Avoid Car Repair Rip Offs
Auto Repair Smog Test Preparation
Auto Repair Car Replacement Parts
Auto Repair Test Equipment Store
 
Search Website
 
 
Recent Repair Topics

 

Auto Repair1976 Other Chrysler Mode...
Auto Repair2000 Vauxhall Corsa Baf...
Auto Repair2006 Kia Sportage Heate...
Auto Repair1999 Chevy Cavalier Ets...
Auto Repair1996 Geo Tracker Shifting
Auto Repair1998 Honda Accord Overh...
Auto Repair2004 Chevy Cavalier Rea...
Auto Repair More Repair Topics...
 
Site Advertising
     
  

Auto Repair Chat - Ask a Question, Get a FREE Answer.

Log inLog in RegisterRegister ProfileProfile Log in to check your private messagesLog in to check your private messages SearchSearchFAQFAQ



 Go Back

2002 Ford Mustang Check engine light



Welcome to our question and answer forum. Our Technicians and members answer over 10,000 free and donated auto repair questions every month. Asking a question is free of charge, just sign up to our forum. However if you elect to donate a small sum we will guarantee an answer from one of our 2Carpros.com certified technicians. Due to the nature of car repair problems it sometimes requires some dialog between our technicians and you to get your problem solved. 100% of the donation is awarded to the technicians helping you, questions with donations are answered as promptly as possible . If you are unsatisfied with our answer we will gladly return your donation.

Posted at Sun Sep 07, 2008 8:02 am
By Easyrider02, New to the forum
Give Feedback | Votes: 0
   
Computer problem
2002 Ford Mustang 6 cyl Two Wheel Drive Automatic 76000 miles
----------------------------------------------------------------
My check engine light has been on for sometime and the diagnosis code that appears is P0402 which indicates that the EGR valve is bad. I have replaced the EGR valve and the light went off for a few days but was able to get the car through emissions. As soon as I departed from the station at the emission the light came back on and has remained on since then. I am not sure to replace the oxygen sensor or what. Please help!
 
Find a car repair manual for your Ford Mustang Repair Question.
 
Reply with quote

Reply to topic
 

Make a small donation! (We will make sure your question will be answered promptly)

 
 
 
Go Back
Forum Home
 
 

 


 
Find a repair manual for your car - Get instant access to your vehicles drive belt routing, wiring diagrams, trouble code information and other available updates and factory bulletins. Click here to find out more.

 

 

 

 

 

 

 

 

 

 
Popular Service Repairs
Test Fuses
Front Brake Pads
Tune Up
Transmission Service
Rear Brake Pads
Rear Brake Shoes
Replace Window Motor
Test Alternator
Test Battery

Replace Air Filter

Check Engine Light

More Service Repairs...
Advertisement

Car Repair Home l Help l Privacy Policy l User Agreement l About Us l Contact Us l Link to Us l Computer Questions l Affiliate Program
  Copyright © 1998 - 2008 2CarPros.com - Professional Mechanics Online