2003 Kia Sorento

2003 KIA SORENTO
17,400 MILES • 6 CYL • 4WD • AUTOMATIC
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GLADSTONE
  • MEMBER
  • 1 POST
My engine vibrates and back fires when i try accelerate the engine speed.OBD 2 was connected and it shows multiple fault codes.
1.Air Mass flow meter PO100
2.Vehicle Speed Sensor malfunction PO500
3.Inlet temp sensor circuit fault PO110
4.Diagnostic Trouble Code P1121
5.Pedal Position Sensor Fault PO120

What is responsible for these faults?
Oct 25, 2008 at 3:05 PM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
Chances are most of them are related. I would start with the pedal position fault. It functions similar to a throttle position sensor and can cause the other codes to set. NOTE: The sensor can be checked prior to replacement.

Let me know what you find.
Oct 13, 2009 at 12:09 PM
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