2003 Cadillac SLS DTC 0174

Tiny
ROUMENID
  • MEMBER
  • 2003 CADILLAC SLS
  • V8
  • FWD
  • AUTOMATIC
  • 83,000 MILES
Please, what could be the reason DTC 0174 appear on OBD II reader?
Thank you
Sunday, October 10th, 2010 AT 2:57 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Lean fuel condition could be caused by one of the following below:

1. Vacuum leaks
2. EGR and PCV valve.
3. Low fuel pressure.
4. Dirty fuel injectors.
5. Mass Air Flow Sensor.
6. Oxygen Sensor.
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Sunday, October 10th, 2010 AT 3:16 AM

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