P0156 Diagnostic Trouble Code Discussion for September 2010
Heated Oxygen Sensor (Bank 2 Sensor 2) Closed Loop Fuel Control
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| Help Request | Posted | |
| 2000 Saturn LW2 3.0L Excessive Emissions, Stall, MIL Lamp on VIN: 1G8JW82R9Y P0156: Heated Oxygen Sensor (Bank 2 Sensor 2) Circuit Malfunction. Car came in with stalling problem and above codes were detected with scan tool. Upstream o2 sensors stay at 900mv at all times, even if i create a vacuum leak. Downstream sensors voltage normal but wont go into closed loop. Now wondering if the computer may be... |
September 08, 2010 | |
| 2000 Saturn LW2 3.0L Excessive Emissions, Stall, MIL Lamp on VIN: 1G8JW82R9Y P0156: Heated Oxygen Sensor (Bank 2 Sensor 2) Circuit Malfunction. Car came in with stalling problem and above codes were detected with scan tool. Upstream o2 sensors stay at 900mv at all times, even if i create a vacuum leak. Downstream sensors voltage normal but wont go into closed loop. Now wondering if the computer may be... |
September 13, 2010 |
