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1998 Chevrolet Blazer 4.3L Excessive Emissions, Misfire, MIL Lamp on
Posted to GM Driveability on 2/10/2007 37 Replies

Ok everyone this one is winning the battle against [...] came in with mil lamp on with codes po151 and [...] o2 sensors found bank 2 sewnsor 1 was at .4mv hot replaced sensor and it was reading ok untill it warmed up then it started to drop out to never going ...

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Message Closed w/Summary

car Vehicle Data

1998 Chevrolet Blazer

VIN 1GNDT13W9W
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Misfire, MIL Lamp On
OccursHot, Under Load, Idle

Trouble Codes

P0151Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit Low Voltage
P0300Multiple Misfire Detected
Message Closed w/Summary

car Vehicle Data

1998 Chevrolet Blazer

VIN 1GNDT13W9W
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Misfire, MIL Lamp On
OccursHot, Under Load, Idle

Trouble Codes

P0151Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit Low Voltage
P0300Multiple Misfire Detected