2004 Toyota Pickup running lean rough idle

41,000 MILES • 6 CYL • 4WD • AUTOMATIC
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MEDIC
  • MEMBER
  • 2 POSTS
the computer states that the left bank is running lean could it be the O2 sensor or if not what the gas milage is killing me every now and then I can see black smoke comming from the exust
Dec 27, 2007 at 11:21 AM
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BLACKOP555
  • ✓Experienced Mechanic
  • 10,386 POSTS
yes you should change that o2 sensor as it is only one bank not both.
Dec 27, 2007 at 11:26 AM
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