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2002 Chevrolet Impala 3.8L MIL Lamp on
Posted to GM Driveability on 5/26/2010 10 Replies

Vehicle came in with no power. Diagnosed plugged cat. Customer had cat replaced at muffler shop(aftermarket cat) vehicle came back 2 days later mil light on. Dtcs 171 1811. Scan data showed 02 sensors low mvs at idle in closed loop. Voltage at 43mv and not flu...

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  Related Documents & Media  2002 Chevrolet Impala

 
Message Closed w/FIX

car Vehicle Data

2002 Chevrolet Impala

VIN 2G1WH55K52
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SEFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursHot, Idle

Trouble Codes

1811Trans
P0171Fuel System Too Lean (Bank 1)
Message Closed w/FIX

car Vehicle Data

2002 Chevrolet Impala

VIN 2G1WH55K52
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SEFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursHot, Idle

Trouble Codes

1811Trans
P0171Fuel System Too Lean (Bank 1)