2004 Mitsubishi Endeavor Engine

2004 MITSUBISHI ENDEAVOR
123,608 MILES • 3.5L • 4WD • AUTOMATIC
Avatar
OMOBA BANKOLE
  • MEMBER
  • 1 POST
I have a 2004 Mitsubishi endeavor Limited, it wont run well when on idle but when on speed it run well and when scanned i have the following DTCs codes :
P0431, P0421, P0300, P0431, P0421, P0300. What can i do to solve this problems?
Jul 22, 2014 at 12:25 AM
Advertisement
Avatar
HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
you have misfires and those are very hard to diagnose. have a pro do it as it's hard form him as well and he'll notify you of other things that are wrong.
Jul 22, 2014 at 5:32 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.