2005 Chevy Silverado Check Engine light

2005 CHEVROLET SILVERADO
54,000 MILES • V8 • 4WD • AUTOMATIC
Avatar
JPING
  • MEMBER
  • 4 POSTS
My check engine light came on after I filled up with fuel at a different station.. WIll it go out when the fuel gets low and I re fill the tank?
Dec 3, 2009 at 4:24 AM
Advertisement
Avatar
JACOBANDNICKOLAS
  • CAR REPAIR CONTRIBUTOR
  • 110,190 POSTS
First, make sure the fuel cap is on tight. If it is, take the car to a nationally recognized parts store and have them scan the computer for codes. If the code is an EVAP system code, they will try to sell you a new gas cap. Don't get it until you tell me the code. About 99% of the time there is nothing wrong with the cap.

Let me know what you find.
Apr 14, 2021 at 6:44 PM
Avatar
JPING
  • MEMBER
  • 4 POSTS
I did what you said reset the light and it ewnt out for a few days and came back on with these error codes

P0131 Oxygen Sensor Circuit Low Voltage (Bank 1 Sensor 1)

P0171 System too Lean (Bank 1)

P1133 Heated Oxygen Sensor (HO2S) insufficient switching bank 1 sensor 1(Rear Bank)

P1131 HO2S 11 Indicates Lean
Apr 14, 2021 at 6:44 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.