DTC 0174

2003 Cadillac SLS

Tiny

roumenid

October, 10, 2010 AT 2:57 AM

Computer problem
2003 Cadillac SLS V8 Front Wheel Drive Automatic 83000 miles

Please, what could be the reason DTC 0174 appear on OBD II reader?
Thank you

1 Answer

Tiny

rasmataz

October, 10, 2010 AT 3:16 AM

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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