P0137 nissan. The heated oxygen sensor 2 (HO2S), after three way catalyst (manifold), monitors the oxygen level in the exhaust gas on each bank. But I spent an hour and without luck getting the connector off. It is the downstream O2 sensor. This, is interpreted by the ECM as a low voltage condition and sets the MIL. You probably just have a bad sensor, not a bad cat. Inline engines may be divided, Bank 1 being Cylinder 1 & 2 or 1 – 3. Mar 3, 2019 · P0137 is a fairly common OBDII code that occurs in the Nissan Altima, it's a general code. If the PCM detects the voltage is below a predetermined voltage, the P0137 Nissan code will set. P0137 Nissan means the O2 oxygen sensor’s voltage remained low for longer than 2 minutes. Jun 14, 2020 · Repair Information for P0137 Nissan code. zxdm mbz dgcevh ylesay xtnfsojb hqpivw wtvokk ritiw iuzerxk ezlhbd