Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 1)
The engine computer is not getting a normal signal from the front oxygen sensor on bank 1. The problem may be the sensor itself, wiring, connector, or a related engine running issue. This can cause poor fuel control and higher emissions.
You can usually drive short distances, but the engine may run poorly and fuel economy may drop. Do not ignore it, because a bad sensor circuit can lead to rough running, failed emissions tests, or damage if the engine is also running rich or lean.
P0130 means the powertrain control module has detected a malfunction in the oxygen sensor circuit for Bank 1 Sensor 1, the upstream sensor before the catalytic converter. The fault may be an open circuit, short circuit, poor connector contact, failed sensor heater circuit, or an incorrect sensor signal caused by engine problems. The code does not always mean the sensor is bad; wiring and connector issues are common.
It is the upstream oxygen sensor on the side of the engine with cylinder number 1, mounted before the catalytic converter.
No. Wiring, connector damage, heater circuit faults, exhaust leaks, and engine running problems can all trigger this code.
Yes. If the sensor signal is wrong, the engine computer may use too much or too little fuel.
No. The code will return if the underlying fault is still present.