code P0401
 

I Keep getting a service engine code-P0401 Exaust gas recirculation flow insufficiant Flow about every 90 100 miles or so. can any one tell me how to fix this problem?
thanks

prob a bad DPFE sensor, which is back by the firewall and hse 2 hoses coming ouf the EGR tube...pretty common problem too...

thanks randy, you are absolutely correct. I was looking for what was wrong and one of those vacuum lines were broke off. the little plastic part the hose goes on...Thanks man...