P040D
Exhaust Gas Recirculation Temperature Sensor "A" Circuit High
DTC P040D, sometimes indicated as P040D00 is an OBD diagnostic trouble code indicating a generic fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the auxiliary emissions system causing exhaust gas recirculation temperature sensor "a" circuit high.
The exhaust gas recirculation (EGR) system recycles a small amount of exhaust gas back into the engine to help reduce emissions. The EGR temperature sensor "A" circuit high code means the EGR temperature sensor is reporting a higher-than-normal temperature.
There are several possible causes for this code, including a faulty EGR temperature sensor, a blockage in the EGR system, or a problem with the EGR valve. checking and cleaning the EGR valve and its passages is often the best solution to this code. If the problem persists, the EGR temperature sensor may need to be replaced.
- P040D: Gas Recirculation Temperature Sensor A Circuit High
- P040D: Exhaust Gas Recirculation Temperature Sensor "A" Circuit High
- P040D: Exhaust gas recirculation (EGR) temperature sensor A – circuit high
- P040D 00: Exhaust gas recirculation (EGR) temperature sensor A - circuit high
Bulletins are notices put out by manufacturers in conjunction with the NHTSA to notify the public of manufacturing issues or changes.
- TSB 16-0146 - ENGINE (PWS)
FORD: Some 2015-2017 transit vehicles equipped with a 3.2l diesel engine and built on or before 12-sep-2016 may exhibit an illuminated mil with dtc P040D - exhaust gas recirculation temperature egrt sensor a circuit high. This may be caused by a - 20170 - UNKNOWN OR OTHER
FORD: 2008 f-super duty 6.4l - P040D dtc with a lack of power or lack of boost. *nj