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2003 Hyundai Tiburon System too lean (bank1)

Tiny
BULLDAWG10001
  • MEMBER
  • 2003 HYUNDAI TIBURON
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?
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Friday, February 20th, 2009 AT 2:08 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,164 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.
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Thursday, August 6th, 2009 AT 9:35 PM

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