# P202E on the 2017 Ram 4500

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

Nobody has written a description of this code yet.

## Bulletins for this model year that name P202E

- [10224745](https://open.wenmarpro.com/bulletins/10224745), 2022-10-24: Flash: Powertrain Diagnostic and System Improvements This bulletin involves reprogramming the Engine Control Module/Powertrain Control Module \(ECM/PCM\) with the latest available software. Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Codes \(DTCs\) have been set:P1C55 \- NOx Sensor Intermittent \- Bank 1 Sensor 1. P202E \- Reductant Injector Performance. P218F \- Reductant No Flow Detected. In addition, the following software enhancements are also available:Fuel filter minder improvement. Calibration changes to engine\-off timer. Changes to engine warm up protection. Hydrocarbon Desorption \(HCD\) driveability improvements. A/C pressure sensor update. Exhaust Gas Recirculation \(EGR\) calibration changes.
- [10222985](https://open.wenmarpro.com/bulletins/10222985), 2022-10-17: Flash: Powertrain Control Module \(PCM\) Updates This bulletin involves reprogramming the Powertrain Control Module \(PCM\) with thelatest available software. Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may findthat one or more of the following Diagnostic Trouble Codes \(DTCs\) have been set: P064F \- Unauthorized Software/Calibration Detected. P2201 \- Aftertreatment NOx Sensor Circuit Performance \- Bank 1 Sensor 1. P24C7 \- Particulate Matter Sensor Temperature Circuit Performance. P1C55 \- NOx Sensor Intermittent \- Bank 1 Sensor 1. P202E \- Reductant Injector Performance. P218F \- Reductant No Flow Detected. In addition, the following software enhancements are also available: Fuel filter minder improvement. Calibration changes to engine\-off timer. Changes to engine warm up protection. Hydrocarbon Desorption \(HCD\) driveability improvements. A/C pressure sensor update. Exhaust Gas Recirculation \(EGR\) calibration changes.
- [10218576](https://open.wenmarpro.com/bulletins/10218576), 2022-08-22: Diesel Injector Freezing This bulletin involves installing a insulator over the Diesel Exhaust Fluid \(DEF\) injector. Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes \(DTCs\) have been set: P218F \- Reductant No Flow Detected. P202E \- \(Diesel Exhaust Fluid\) Reductant Injector Performance. The customer will not notice any drivability issues associated with these DTCs. These DTCs may set when the vehicles is parked for a long time and the ambient temperatures are below \-11 °C \(12 °F\).