Got a code P0141 and a P0128(which i understand is most likely the thermostat. Which 02 sensor is the B1S2 sensor on the 2001 Chev blazer?
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2001 Chevrolet Blazer Question: Where is the B1S2 heater circuit located on this vehicle?
G. T. Service Center (4243 Answers) , Stephenville, TX - (254) 638-3236ProfessorG October 29, 2013, 21:13Master
From the fuse box fuse to the o2 sensor then to a ground, usually means bad o2 sensor.
Answer #2Greg's Orange Auto (14958 Answers) , Orange, CA - (714) 361-9386globalhelper October 30, 2013, 09:38Master
try www.alldatadiy.com for location