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2008 Chevrolet Silverado 1500 WT 4.3L Poor Idle Quality, MIL Lamp on
Posted to GM Driveability on 4/18/2015 5 Replies

Hi guys. This thing is so intermitant, when i see it act up on scanner and go lean at idle, im not at the shop to ck it out. Always on test drive, cant duplacate in shop. Readings look good + - 3 [...] it acts up it goes 24 +. Short just b1. B2 stays ok. Then ...

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  Related Documents & Media  2008 Chevrolet Silverado 1500 WT

 
Message Closed w/Summary

car Vehicle Data

2008 Chevrolet Silverado 1500 WT

VIN 1GCEC14X38
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, MIL Lamp On
OccursIntermittently
Misc.Fleet Act.

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0573Brake Switch 1 Circuit High
P1174Air Fuel Sensor (Bank 2 Sensor 1) Circuit Out-Of-Range High
P2271Heated Oxygen Sensor (Bank 1 Sensor 2) Signal Stuck Rich
Message Closed w/Summary

car Vehicle Data

2008 Chevrolet Silverado 1500 WT

VIN 1GCEC14X38
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, MIL Lamp On
OccursIntermittently
Misc.Fleet Act.

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0573Brake Switch 1 Circuit High
P1174Air Fuel Sensor (Bank 2 Sensor 1) Circuit Out-Of-Range High
P2271Heated Oxygen Sensor (Bank 1 Sensor 2) Signal Stuck Rich