How do I fix code P2457?
How To Correct P2457 Exhaust Gas Recirculation Cooling System Performance
- You must add enough amount of engine coolant.
- Make sure to mend the leakages in the exhaust.
- Repair or replace the quirky EGR temperature sensor.
- Rehabilitate the defaults in the EGR cooler.
What does code P2457 mean?
OBD-II Code EGR temperature sensor failure is defined as a Exhaust Gas Recirculation Cooling System Performance. The engine computer (PCM) monitor the EGR Cooler outlet temperature. If the exhaust gas is excessively high, this is an indication that the EGR cooler is not functioning properly. Code P2457 will be stored.
How does EGR temperature sensor work?
The sensor is installed in between the exhaust and intake manifold, and monitors the temperature of the exhaust gases. When the temperature rises, the EGR temperature sensor will send a signal to the computer that will increase the flow in order to reduce pressure and temperature of the system.
What does p2457 mean on an EGR cooler?
If the exhaust gas is excessively high, this is an indication that the EGR cooler is not functioning properly. Code P2457 will be stored.
What are the causes of the p2457 code?
P2457 Possible Causes 1 Faulty Exhaust Gas Recirculation (EGR) temperature sensor 2 Exhaust Gas Recirculation (EGR) temperature sensor harness is open or shorted 3 Exhaust Gas Recirculation (EGR) temperature sensor circuit poor electrical connection
When does a p2457 exhaust heater malfunction?
If the EGR temperature sensor input signal is not within programmed specifications, or if the EGR sensor input signal is not significantly lower than that of the auxiliary exhaust temperature sensor, a P2457 will be stored and a malfunction indicator lamp may be illuminated.
Is there a ditto on the p2457 Koer?
Ditto on the P2457 KOER as expected in the TSB. I have NEVER gotten the code to come up. The first two of these I ran into I followed the diagnostics in the TSB and I did not get the code. I then spent the better part of an hour performing the diagnostics in the PCED only to come up with nothing. Cleared the code and released the truck.