What is code P242D?
The Exhaust Gas Temperature (EGT) Sensor tells the engine control module (PCM) the temperature of the exhaust gas going into and out of the Selective Catalytic Reduction (SCR). If the PCM detects an implausible signal from the EGT sensor, it will store code P242D.
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 P0405 code mean?
Exhaust Gas Recirculation Sensor A
What does OBD-II fault code P0405 mean? OBD-II Code P0405 is defined as a Exhaust Gas Recirculation Sensor A Circuit Low. NOx gases, which are a leading cause of acid rain and in some people, respiratory problems, are formed when the engine combustion temperatures become too high (2500° F).
What is exhaust gas temperature sensor?
What is an exhaust gas temperature sensor? As its name suggests, the exhaust gas temperature sensor measures the temperature of the exhaust gas. This information is then relayed back to the engine control unit or ECU, where appropriate action is taken.
What is a high exhaust temp?
When a Diesel Particulate Filter regeneration process begins, the High Exhaust System Temperature HEST lamp illuminates and exhaust gas temperature may reach 1500 degrees F. That’s hot enough to ignite and/or melt materials and burn people.
Where is the exhaust gas recirculation sensor?
The EGR temperature sensor is usually mounted in the exhaust manifold or mounted near the EGR valve.
How do I know if my DPFE sensor is bad?
A faulty DPFE sensor can cause several problems:
- increased emissions.
- rough idle.
- hesitation.
- decreased engine power.
- decreased fuel efficiency.
- failed emissions.
- check engine light on.