What the P0546 code means. P0546 indicates that there is a malfunction related to the exhaust gas temperature sensor circuit. The purpose of the sensor is to protect the catalytic converter from heat damage. This sensor converts temperature to voltage, and inputs this data to the PCM (powertrain control module).
Where is the exhaust gas temperature sensor located?
Generally, one temperature sensor is located on the exhaust manifold, and one is located near the EGR valve. The typical symptoms of a failed EGR temperature sensor include pinging, increased emissions and an illuminated Check Engine Light.
How does an exhaust gas temperature sensor work?
The exhaust gas temperature sensor detects the temperature, for example, in front of the catalytic converter or diesel particulate filter and sends this as a voltage signal to the engine control unit.
What does P0544 code mean?
exhaust gas temperature sensor circuit
P0544 code definition
The P0544 code means that the powertrain control module (PCM) has detected a problem with the exhaust gas temperature sensor circuit.
What does P2084 code mean?
The P2084 diagnostic trouble code is an indication that there is a range/performance issue of the exhaust gas temperature (EGT) sensor 2 circuit on Bank 1. The EGT sensor monitors the temperature of exhaust gas and sends this information to the powertrain control module (PCM) through a voltage signal.
Can a faulty exhaust temperature sensor symptoms?
A faulty exhaust gas temperature sensor can negatively affect a vehicle’s after-treatment system, resulting in the following symptoms: Check engine light: if the ECU detects a problem with the sensor or signal, it will trigger the check engine light to come on.
Can you clean exhaust temperature sensor?
Handle the exhaust gas temperature sensor carefully, dropping the component may cause unseen damage to the cement that secures the thermistor. 3. If the sensor is threaded, clean the thread in the exhaust pipe with a cleaning tap.
How do you fix high exhaust temperature?
Installing aftermarket parts to help regulate exhaust gas temperatures will extend the life of the motor and assist with increased performance.
- Provide additional airflow to the motor by installing an aftermarket, cool air intake in place of the stock air filter. …
- Install a free-flowing, large diameter exhaust system.
How much is an exhaust sensor?
A brand new replacement oxygen sensor can cost you from $20 to $100, depending on the make and year of your car. Taking your car to a mechanic to fix the issue can cost up to $200.