1991 Chevy Cheyenne service engine soon codes

1991 CHEVROLET CHEYENNE
56,000 MILES • 4 CYL • 2WD • AUTOMATIC
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JGUMP1
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  • 1 POST
i have a 1991 chevy c1500 pickup with a 4.3 liter v6 engine and i am getting codes 13 and 22 and i would like to know what these codes are so i get them fixed
Aug 7, 2009 at 5:10 AM
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BLUELIGHTNIN6
  • ✓Experienced Mechanic
  • 16,542 POSTS
Code 13 indicates open oxygen sensor circuit (faulty sensor or wiring to sensor)

Code 22 indicates throttle position sensor (TPS) signal voltage low (faulty TPS or wiring to TPS)
Aug 7, 2009 at 5:37 AM
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