My OBDII screen read, Low Voltage Oxygen Sensor Bank 1 Sensor 3

Question

1999 chevy blazer with a 4.3 liter v-6

Answer 1

HI there,

This code usually occurs when the rear most O2 sensor fails to generate voltage when the converter create oxygen. Normally the sensor itself is the cause of the problem, but it can be a wiring issue or a problem with the converter. Just remember sensor #3 is AFTER the converter.