2003 Hyundai Tiburon System too lean (bank1)

2003 HYUNDAI TIBURON
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BULLDAWG10001
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  • 1 POST
Engine Performance problem
2003 Hyundai Tiburon 6 cyl Front Wheel Drive Automatic

When i was driving home my check engine light came on i stopped by advanced and got my engine checked it came back P0171 System Too Lean (bank 1) What exactly could it be?
Feb 20, 2009 at 6:08 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 POSTS
I would start by checking for vacuum leaks. If you have one it will change the air fuel mixture causing a lean condition. Also, make sure the connections to the O2 sensors are connected, not corroded, and in good condition.
Aug 6, 2009 at 2:35 PM
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