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?
Chevrolet Q&AAsk Your Question
2001 Chevrolet Blazer Question: Where is the B1S2 heater circuit located on this vehicle?
G. T. Service Center (4231 Answers) , Stephenville, TX - (254) 638-3236ProfessorG October 29, 2013, 18:13Master
From the fuse box fuse to the o2 sensor then to a ground, usually means bad o2 sensor.
Answer #2Greg's Orange Auto (14262 Answers) , Orange, CA - (714) 361-9386globalhelper October 30, 2013, 06:38Master
try www.alldatadiy.com for location