P0133 is a common OBDII code that occurs in many vehicles, including theHummer H2. The code is triggered when there is an issue with the response time from the oxygen (O2) sensor when switching voltage levels. The O2 sensor is responsible for helping the ECM meter oxygen levels in the exhaust in order to … Read more
P0132 is a common OBDII code that occurs in many vehicles, including the Hummer H2. The code is triggered when: The voltage at the sensor remains above threshold for 20 seconds or more. The air fuel sensor stays in rich biased mode for too long. There are also some less likely problems that can … Read more
The P0131 code is an OBD-II diagnostic trouble code that indicates low voltage in the Hummer H2’s Oxygen (O2) sensor circuit for Bank 1, Sensor 1 (B1S1). This sensor plays a crucial role in maintaining optimal engine performance by detecting the air-fuel ratio in the exhaust, then sending this data to the H2’s engine control … Read more
P0330 is a powertrain OBDII trouble code that has the same meaning for the Hummer H2 as it would any other vehicle. By definition, it means that the vehicles ECM/PCM isn’t getting the proper signal from the knock sensor. Clearing this code typically requires a new knock sensor. The second most common cause is … Read more
A trouble code is a signal that is generated by an automatic transmission system whenever it detects an issue in the Hummer H2 that requires your attention. The P0700 code is a general code that is typically accompanied by another code that specifies the specific problem. This code is part of the OBDII system and … Read more
P0130 is a very common OBDII code that occurs in the Hummer H2. It is typically caused when the Oxygen Sensor voltage is not within normal operating conditions. Hummer H2 P0130 Symptoms Typically, the only symptom of P0130 is going to be the service engine soon light. In some cases, there can be other symptoms … Read more
The P0440 code is a common trouble code that many Hummer H2 owners may encounter. It indicates that there is an issue with the vehicle’s Evaporative Emission Control (EVAP) system. Specifically, the EVAP system is malfunctioning. A variety of causes can trigger the P0440 code, with the most common one being a loose or damaged … Read more
One of the most common trouble codes with the Hummer H2 is the P0496 code. This code number references a number that is given to you when you plug your H2 into an OBDII scanner. Below, you’ll find the most common symptoms and ways to diagnose the P0496 in your Hummer H2. Good Luck! … Read more
P0161 is a very common OBDII code that occurs in the Hummer H2. It is typically caused by a failure in one of the elements that heat the oxygen sensors, specifically bank 2 sensor 2. Replacing the Oxygen sensor will fix the problem a majority of the time. Some of the other causes of P0161 … Read more
P0155 is a very common OBDII code that occurs in the Hummer H2. It is caused by a failure in one of the oxygen sensors heated elements, specifically bank 2 sensor 1. The purpose of the heated element in the oxygen sensor is to quickly bring your O2 sensor up to normal operating temperature after … Read more