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P2080 is a diagnostic trouble code (DTC) for "Exhaust Gas Temperature Sensor Circ Range/Perf Bank 1 Sensor 1". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.
The P2080 code is a generic powertrain code related to the transmission, including pressure faults and sensor failures. In this case, the electronic control module (ECM) has found a malfunction or fault in the exhaust gas temperature sensor circuit bank 1 sensor 1.
Codes related to the P2080 include:
A code P2080 will be stored when the ECM has detected a fault or malfunction in the exhaust gas temperature sensor circuit bank 1 sensor 1. Typically, bank 1 means the bank of the engine that contains the number 1 cylinder, and sensor 1 is the pre-catalytic converter sensor, or upstream sensor.
A vehicle’s exhaust gas temperature sensor usually is a two-wire sensor, which is located in the exhaust down pipe. This sensor is utilized in diesel, gasoline, and turbocharged engines. However, in a diesel engine the sensor is typically located near the diesel particulate filter (DPF) portion of the exhaust system.
The sensor is of the temperature reactive resistor type, and is supplied with around a 5-volt power wire and ground wire. When the exhaust gas temperature goes up, the resistance level in the sensor will decrease, which allows a feedback voltage signal to the ECM to increase. When the engine is off and exhaust temperature decreases, circuit resistance will increase and the feedback voltage signal to the ECM will decrease. The ECM takes these voltage variations as the temperature of the exhaust gas and adjusts ignition timing or air/fuel ratio.
Several problems may cause a P2080 code including:
Symptoms of a P2080 code may include:
A mechanic may use several methods to diagnose a P2080 trouble code, including:
Often, the oxygen sensor is mistaken for the exhaust gas temperature sensor, or believed that it is integrated into the heated oxygen sensor, resulting in the incorrect replacement of an oxygen sensor. It is recommended to fully diagnose the exhaust gas temperature sensor and related circuitry when a P2080 code is stored.
Because a vehicle’s safe driving operation most likely will be impacted due to faults that store a P2080 code, this code is considered a potentially serious code. When this code appears, it is recommended to immediately take your vehicle to your local service center or mechanic for repair and diagnosis.
Several repairs can fix a P2080 trouble code and include:
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