In most cases the fix is. Depending on the severity of the code, you may need to replace the oxygen sensor or the entire wiring harness. The p0137 code for chevrolet vehicles indicates a problem with the ho2s (heated oxygen sensor) circuit having low voltage for bank 1 sensor 2
Chevy Silverado P0137: O2 Sensor Low Voltage (Bank 1 -Sensor 2
Don’t just replace the sensor
Master the diy steps to accurately diagnose the p0137 code, testing the circuit, wiring, and exhaust for the true cause.
Learn what the p0137 o2 sensor code means, common causes, symptoms, and repairs Find out if it’s safe to drive and how to fix it fast. P0137 means the downstream oxygen sensor on bank 1 (sensor 2) is reading abnormally low voltage — below 0.4v for 20+ seconds The most common fix is replacing the downstream o2.
This sensor sits immediately after the catalytic converter to monitor its efficiency by measuring exhaust oxygen content A low voltage reading (under 0.2v) tells the pcm there is excess. Essentially the same as p0136, p0137 refers to the second oxygen sensor on bank 1 P0137 means the o2 oxygen sensor's voltage remained low for longer than 2 minutes
This, is interpreted by the ecm as a.
Symptoms of a faulty o2 sensor include decreased fuel efficiency, rough idling, poor acceleration, and check engine light illumination Diagnose and clear this code with the right obd2 tools. So i have a question I have a 2001 silverado 1500 with the 4.8
When i start it, it smokes white smoke (burnt oil smell) for a few less then a minute No collant in the oil or anything. The purpose of the oxygen sensor is to measure the oxygen content in the exhaust gases after they leave the combustion. My 2020 silverado is hard to start, like it's struggling with the gas
It has a long cranking time, and sometimes it sounds like it's running out of gas and the fuel level sensor drops.
Full diagnostic guide + 2026 repair costs. The p0137 code indicates a problem with the o2 (oxygen) sensor circuit, specifically a low voltage reading from bank 1 sensor 2 The p0137 code in your chevy silverado indicates a sensor or wiring problem
