P20E8 Code - Reductant Low Pressure
Quick Answer
The pressure sensor information is used by Reductant Control Module; this module manages the reductant pressure system driving the PWM signal to the pump (corresponding to a speed setpoint for the reductant pressure pump) in order to build the pressure in the reductant pressure pipeline after the system start-up. Common causes include Faulty Reductant Injector, Reductant Injector harness is open or shorted, Reductant Injector circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P20E8 indicates Reductant Low Pressure.
- Common causes
- Common causes include Faulty Reductant Injector, Reductant Injector harness is open or shorted, Reductant Injector circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P20E8 Description
What are the Possible Causes of the DTC P20E8?
- Faulty Reductant Injector
- Reductant Injector harness is open or shorted
- Reductant Injector circuit poor electrical connection
- Faulty Reductant Pump and Sensor Assembly
How to Fix the DTC P20E8?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P20E8 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Information for Specific Makes
- P20E8 Buick — Reductant Low Pressure
- P20E8 Cadillac — Reductant Low Pressure
- P20E8 Chevrolet — Reductant Low Pressure
- P20E8 Dodge — Reductant Pressure Too Low
- P20E8 Ford — Reductant Pressure Too Low
- P20E8 GMC — Reductant Low Pressure
Frequently Asked Questions about P20E8 Code
1. What are the common symptoms of OBDII code P20E8 (Reductant Low Pressure)?
- Common symptoms include the illumination of the Check Engine Light, reduced engine performance, and potential issues with emission control systems.
2. What are the possible causes of OBDII code P20E8?
- Possible causes may include a malfunctioning reductant pump, a leak in the reductant system, a faulty reductant pressure sensor, or issues with the reductant quality.
3. How can I diagnose OBDII code P20E8?
- Diagnosing P20E8 typically involves using a scan tool to read the code, checking for leaks in the reductant system, testing the reductant pump and pressure sensor, and verifying the quality of the reductant fluid.
4. Can driving with OBDII code P20E8 cause further damage to my vehicle?
- Continuing to drive with P20E8 may lead to reduced fuel efficiency, potential damage to the catalytic converter, and increased emissions, so it is best to address the issue promptly.
5. What are some DIY repair tips for resolving OBDII code P20E8?
- DIY repair tips may include checking for visible leaks in the reductant system, ensuring the reductant fluid is topped up and of the correct quality, and inspecting the reductant pump and sensor for any obvious issues.
6. Is it safe to ignore OBDII code P20E8 (Reductant Low Pressure)?
- Ignoring P20E8 can lead to potential issues with emissions compliance, reduced engine performance, and increased fuel consumption, so it is recommended to address the problem as soon as possible.
7. How much does it typically cost to repair OBDII code P20E8?
- The cost of repairing P20E8 can vary depending on the specific cause of the issue, but it may involve expenses for parts replacement, diagnostics, and labor, with costs ranging from a few hundred to over a thousand dollars.
8. Can a faulty reductant pump be repaired, or does it need to be replaced?
- In most cases, a faulty reductant pump will need to be replaced rather than repaired, as it is a crucial component of the reductant system responsible for maintaining pressure.
9. Are there any recalls related to OBDII code P20E8?
- It is advisable to check with the vehicle manufacturer or the National Highway Traffic Safety Administration (NHTSA) for any recalls related to OBDII code P20E8 to see if there are any known issues or remedies.
10. How long does it take to repair OBDII code P20E8?
- The repair time for P20E8 can vary depending on the specific cause of the issue, the availability of parts, and the mechanic's workload, but it may take anywhere from a few hours to a day or more to complete the repair.
Discuss the causes and fixes for P20E8 OBDII Code
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Dear friends, I own a 2014 f 250 and by mistake someone put a diferent solution in the DEF tank and the code p20e8 apears, we clean the complete sistem and we also chandelier the pump and the injector but it doesn't work, what else should I do?
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