2002 Sport Trac OBD2 question

[pilgrda]

Check engine light has been on with code P0174 System too lean (Bank 2) Is this oxygen sensors if so how many. Starting to have idling problems. Thanks for any help

 

[ncranchero]

PCV Elbow ........

http://www.explorerforum.com/forums/showthread.php?t=263510&highlight=PCV+elbow

http://www.explorerforum.com/forums/showthread.php?t=261852&highlight=PCV+elbow

 

[pilgrda]

Thanks for the input. Found PCV elbow loose at engine. Pushed back on and PO174 went away but PO171 came on. System too lean bank 1 this time. Truck does appear to be running much better though. Thanks

 

[ncranchero]

In the photo in the second link above is the front elbow,( the bottom one in the photo ). Examine the underside of that elbow. They always seem to split on the bottom where you can't see it.

 

[pilgrda]

Located pcv elbow and changed. It basically fell apart. Thanks for the help

 

[ncranchero]

You should see an improvement in how she runs now.