05 chev avalanche

2005 CHEVROLET AVALANCHE
44 MILES • 4WD • AUTOMATIC
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MCHARBIE2003
  • MEMBER
  • 1 POST
Engine light came on, scanned and these r the errors.

0 2 sensor circuit low voltage bank 1 sensor 1.
System too lean bank
Random/Multiple cylinder misfire detected

Can u help?

Mike
Feb 2, 2011 at 2:30 AM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
Using a live info scanner, check the voltage reading of the O2 sensor at an idle whith the engine warm. It shouldn't exceed .45 volts. If it does, replace the sensor. Also, make sure to check wiring and connections for damage or corrosion.
Mar 8, 2011 at 4:31 PM
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