running lean

50

Asked by Dec 17, 2009 at 07:34 PM about the 2001 Chevrolet Silverado 1500 LT Extended Cab SB 4WD

Question type: Maintenance & Repair

Lately my truck has been showing service engin soon light, I hokked up a code reader and it says it is running lean on bank 1, so, I did a real time data check while driving it and noticed the O2 sensor voltage on bank 1 is much lower and varies much more than #2, jumps anywhere from .10 to .74 and #2 is more rythmic variance.
Could this mean the sensor is bad? and making it run lean?

5 Answers

it could be. id change them both.

45

what codes are u running p0160 p0157 p0158

1 of 1 people found this helpful.
50

I think it was p0171, just saying it's lean. injectors?

5 of 5 people found this helpful.
45

i have heard of intakes leaking and causing this

2 of 2 people found this helpful.
10

I have codes 174, 171, 137

1 of 1 people found this helpful.

Your Answer

Add photo

Related Questions

  • running lean 5 answers

    Lately my truck has been showing service engin soon light, I hokked up a code reader and it says it is running lean on bank 1, so, I did a real time data check while driving it and noticed the O2 sens...

    2001 Chevrolet Silverado 1500 LT Extended Cab SB 4WD

    -

    Maintenance & Repair

  • Running lean 2 answers

    Okay so I drive a 2000 chevy blazer. I just replaced my o2 sensors because I went to auto zone because my check engine light was on & it said replace o2 sensor in bank one and two so we did. Now t...

    2000 Chevrolet Blazer 4 Door LT 4WD

    -

    Maintenance & Repair

  • My 2003 Chevy Silverado 1500 is running lean. Before this Happened my truck would just off while driving it. Is my Fuel pump? 1 answer

    My Truck is Shutting off while driving it. My engine Light just came on, I hookes up to Machine , and said my truck is running lean. Could it be my Fuel Pump/ ?

    2003 Chevrolet Silverado 1500 Ext Cab Short Bed 2WD

    -

    Maintenance & Repair

  • Why does my truck have a miss and running lean?

    I did a full tune up. Temp sensor changed good valve pressure good fuel pressure. The only thing I did lately was put a throttle body spacer about 3 mouths ago. My truck is a 98 chevy 1500 5.7

    1999 Chevrolet Silverado 1500 3 Dr LS 4WD Extended Cab LB

    -

    Maintenance & Repair

  • 1997 Chevrolet Cavalier LS running rich/lean 4 answers

    Hello, I have a 1997 Chevrolet Cavalier 2.2 with 155k that has been running a crazy trim ratio. When the car is first started, which is starts fine now that I replaced the MAP, TPS, IAC valve, EGR, ...

    1997 Chevrolet Cavalier

    -

    Maintenance & Repair

Silverado 1500

Looking for a Used Silverado 1500 in your area?

CarGurus has 183,083 nationwide Silverado 1500 listings starting at $1,495.

ZIP:

Search Chevrolet Silverado 1500 Questions

Chevrolet Silverado 1500 Experts

#1 John Carson
John Carson
Reputation 2,410
#2 Rowefast
Rowefast
Reputation 1,950
#3 tenspeed
tenspeed
Reputation 1,650
View All

Related Models For Sale

Used GMC Sierra 1500
783 Great Deals out of 68,701 listings starting at $1,800
Used Ford F-150
2,173 Great Deals out of 195,111 listings starting at $290
Used Dodge Ram 1500
420 Great Deals out of 10,945 listings starting at $1,000
Used Chevrolet Silverado 2500HD
297 Great Deals out of 28,514 listings starting at $1,500
Used Toyota Tundra
457 Great Deals out of 34,712 listings starting at $2,500
Used Toyota Tacoma
518 Great Deals out of 43,167 listings starting at $1,995
Used Chevrolet Tahoe
597 Great Deals out of 32,881 listings starting at $1,500
Used Chevrolet Camaro
348 Great Deals out of 31,370 listings starting at $2,500
Used Ford F-250 Super Duty
325 Great Deals out of 44,694 listings starting at $1,450
Used Chevrolet Silverado 2500
13 Great Deals out of 246 listings starting at $3,900
Used Chevrolet Silverado 1500HD
12 Great Deals out of 277 listings starting at $3,995

Used Cars For Sale

2017 Chevrolet Silverado 1500 For Sale
283 Great Deals out of 127,899 listings starting at $20,589
2016 Chevrolet Silverado 1500 For Sale
131 Great Deals out of 5,704 listings starting at $18,995
2015 Chevrolet Silverado 1500 For Sale
224 Great Deals out of 8,353 listings starting at $12,950
2014 Chevrolet Silverado 1500 For Sale
257 Great Deals out of 10,262 listings starting at $9,798
2013 Chevrolet Silverado 1500 For Sale
164 Great Deals out of 4,953 listings starting at $7,988

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.