SPONSORED LINKS

2002 Ford Taurus Diagnostic codes P0171 and P0174 System to

Tiny
CAPNJIM
  • MEMBER
  • 2002 FORD TAURUS
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 90,000 MILES
Hi Guys,

I would appreciate anything you could tell me about what could cause code P0171 and P0174 (System Too Lean) on banks 1 and 2 on my daughter's V6 Taurus. I have donated before and received good advice.

Thanks,

Capnjim
SPONSORED LINKS
Friday, March 19th, 2010 AT 12:32 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Hi capnjim, Welcome to 2carpros and TY for the donation

Lean condition: P0171/0174

Could be caused by one of the following:

Dirty or Inoperative Mass air flow sensor, an EGR valve that's leaking, fuel injectors dirty, low fuel pressure, pressure regulator leaking, PCV valve and vacuum leaks
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Friday, March 19th, 2010 AT 2:34 PM

Please login or register to post a reply.

Related P0174 Content

VIEW MORE

Sponsored links