dainostic codes

2000 FORD F-150
6 CYL • 2WD • AUTOMATIC
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BLUE2SMOKEY
  • MEMBER
  • 1 POST
after you get codes, and it says bank #1 and bank 2 is running to rich, what to do to fix it. on a ford f150 2000 pickup,engine 4.2 liter.
Mar 25, 2011 at 11:31 PM
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RASMATAZ
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 75,992 POSTS
Probable causes of an engine running rich are as follows:

Excessive fuel pressure can be cause by restricted fuel return line
2.Defective Oxygen Sensors.
3.Leaking injectors and fuel pressure regulator.
4.Coolant temperature sensor out of calibration.
5.Restricted air intake system.
Mar 25, 2011 at 11:38 PM
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