2000 Ford Windstar CHECK ENGINE LIGHT ON

Tiny
DAVID00
  • MEMBER
  • 2000 FORD WINDSTAR
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 166,000 MILES
GOOD DAY

MAY YOU PLEASE EXPLAIN WHAT 'SYSTEM TOO LEAN (BANK 1)' AND 'SYSTEM TOO LEAN (BANK 2)' MEANS. THESE ARE THE RESULTS FROM AN OBD SCANNER. THE CODES WERE P0171 AND P0174. I THANK YOU IN ADVANCE FOR YOUR HELP.
Wednesday, April 2nd, 2008 AT 2:10 PM

1 Reply

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
You may have a vacuum leak, get a can of spray gumout, spray the vac lines and maniflod area, when the idle changes, youve found the leak! You want the engine running and spray on the outside but do direct the stream onto the hoses, if it is a vacuum leak, the engine idle will change speed, then you have detected a leak, repair the vacuum leak and see how it runs!
If you have a plastic intake manifold, pay attention to the seam areas!
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Wednesday, April 2nd, 2008 AT 2:21 PM

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