What causes a p0138 error code on an oxygen sensor?
Although the P0138 code often appears due to a worn-out oxygen sensor, it’s not the only condition that can trigger this error. This diagnostic code can also appear when any of the related components fail. That’s why, apart from knowing the symptoms to watch out for, it is also a good idea to know what causes a P0138 error code.
What does the DTC code p0138 stand for?
Diagnostic trouble code (DTC) P0138 stands for O2 Sensor Circuit High Voltage (Bank 1, Sensor 2). The code will set when your car’s primary computer—also called the powertrain control module (PCM)—detects that, for a given period of time, the voltage signal from the rear O2 sensor is too high.
What does the code p0138 on a boxer engine mean?
Code P0138 is set when the downstream sensor sends too high of a voltage signal for an extended period of time. The bank one portion of the code indicates that the issue is on the side of the engine that houses the number one cylinder (only applies to engines with a ‘V’ or boxer configuration).
What causes an O2 sensor to go off?
Below is a list of common causes: 1 Faulty oxygen sensor 2 A rich running condition caused by a fuel delivery issue (e.g., excessive fuel pressure) 3 Damaged wiring or connections 4 A problem with the PCM, such as software in need of an update
What does the p1283 Nissan sensor code mean?
P1283 NISSAN Meaning The A/F sensor is a planar dual-cell limit current sensor. The sensor element of the A/F sensor is the combination of a Nernst concentration cell (sensor cell) with an oxygen-pump cell, which transports ions. It has a heater in the element.
What does it mean when your oxygen sensor says P0420?
Oxygen sensors are only a part of a greater system, meaning if the p0420 code (or p0141, or p0135) is thrown, that doesn’t necessarily indicate the oxygen sensors need replacement. Rather, there could be something else in that system does that’s causing the oxygen sensors to appear faulty.
What does Service Bulletin OBDII code p1283 mean?
Nissan Service Bulletin OBDII Code P1283 There is a factory service bulletin for the following Nissan models: 2004 Maxima (A34) with 5 speed A/T only 2004 Quest (V42) with 5 speed A/T only Nissan Factory Service Bulletin OBDII Code P1283 2004 Maxima (A34) with 4-speed A/T and 6-speed M/T 2004 Quest (V42) with 4-speed A/T
Can a bad sensor cause an oxygen sensor to not work?
It turns out that most of the issues that set oxygen sensor codes are not a result of a bad sensor. So, automatically screwing in a new sensor because there’s a sensor-related code is a big gamble. A good mechanic will always use those trouble codes simply as a starting point in his diagnosis.