I have a 96 F-150. 4.9L inline six engine. My check engine light came on. Trouble codes read 171(System too lean bank 1) 174 (System too lean bank 2) and 401 (EGR flow insufficient). Where is a good place to start? Truck seems to run sluggish and sometimes after stopping from high speed on the highway it will stall. Any help will be great.
have the same problem?
Saturday, February 24th, 2007 AT 4:40 PM