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1997 Chevrolet Blazer 4.3L Excessive Emissions, Poor Idle Quality, Hesitation, Cuts out, Misfire, Poor Fuel Economy, MIL Lamp on
Posted to GM Driveability on 9/19/2005 13 Replies

vehicle idles poorly. starts to stink from running over rich in exhaust. lacks power. scanner shows missfire on cylinders 1,3,&5. no indication of regulator leaking. from experience this usually causes 2,4,6 cyl to missfire. fuel pressure does not leak down. i...

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car Vehicle Data

1997 Chevrolet Blazer

VIN 1GNDT13WXV
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / CPI
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Poor Idle Quality, Hesitation, Cuts Out, Misfire, Poor Fuel Economy, MIL Lamp On
OccursAlways

Trouble Codes

P0147Heated Oxygen Sensor (Bank 1 Sensor 3) Heater Circuit Malfunction
P0300Multiple Misfire Detected
P1133Heated Oxygen Sensor (Bank 1 Sensor 1) Insufficient Switching
Message Closed w/FIX

car Vehicle Data

1997 Chevrolet Blazer

VIN 1GNDT13WXV
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / CPI
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Poor Idle Quality, Hesitation, Cuts Out, Misfire, Poor Fuel Economy, MIL Lamp On
OccursAlways

Trouble Codes

P0147Heated Oxygen Sensor (Bank 1 Sensor 3) Heater Circuit Malfunction
P0300Multiple Misfire Detected
P1133Heated Oxygen Sensor (Bank 1 Sensor 1) Insufficient Switching