I have searched and searched the forum on how to fix this problem. Amost all of the posts mention a tube on the bottom of the throttle body. I have checked the tube (I think I checked the right one) and it appears to be fine. Is there anything else I can check? I do not want to do the EGR removal option.

Any help would be greatly appreciated.

Thanks

 

There are two hoses, did you make sure both were on?

 

I did. Nothing loose or hanging.

 

google p0401 im dealing with this issue right now and i also made a thread check the link
https://www.evolutionm.net/forums/ev...egr-p0401.html

 

My 401 came on last week. One of the hoses came off. But after clearing it and installing with a zip-tie, code still comes back after a few days.

Thinking time to buy an EGR. At least this one lasted a while,LOL

 

im doing the same man the hell with it i got a quote for $84 bux for a oem one homie discount

 

When are you doing the replacement? I was considering the same thing. What is the part number for the EGR? Please don't flame me if it is already posted somewhere.

Thanks

 

OEM part numbers: http://www.mitsubishiparts.com/

 

12400-egr
12410- gasket

 

take out the egr and clean it with a screw driver and gum out/carb cleaner then if the check light still comes on it has to be the egr solenoid..located on the opposite side of the egr valve.

 

or the egr it self

 

The problem is fixed. It was a hose. It felt like they we on good at first. Decided to try to take them off and make sure the hoses did not have any cracks then reconnect. As soon as I did, one fell right off. Reconnected it better and added a zip tie. Car running much better, and the code is gone.

Thanks for helping me to troubleshoot the problem.