Guide To P2048 OBD Error Code Solutions

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Check engine light flickering? Don’t worry, Parts Avatar to the rescue! Here’ how you can easily diagnose the error code P2048. The OBD-II code P2048 is also described as a reductant injection valve circuit/open. While the conversion of the leftover gases into non toxic gases is being performed, the diesel exhaust fluid (DEF)is constantly utilized. In order to burn off these particles completely, one needs to increase the temperature of the exhaust system. To attain this required temperature in the diesel particulate filter, an injection of DEF fluid is added to the exhaust stream. Only then the system is able to convert the hazardous NOx to nitrogen, carbon dioxide and water. Consequently, when the DEF injector fails to function, the code P2048 is stored.

This code sets in when the ECM detects a defect in the reductant injector air pressure sensor circuit. Also, for decreasing the harmful gases released from the diesel particulate filter (DPF) in a diesel engine or catalytic converter in a gasoline engine, the reductant injector is added. It should be noted that the bank of the engine that consists of the number one cylinder is bank 1, and unit 1 is the pre-diesel particulate filter or upstream catalytic converter sensor.

What causes this problem with the Reductant Injection Valve Circuit Low Bank 1 Unit 1?

• A defective reductant injection valve
• Loose ends or corrosion in the reductant injection valve control
• Deficient DEF in the reservoir
• A damaged SCR controller/PCM or programming error

1. Reductant injection valve - Suddenly observing unexplainable jerks or bucking in the vehicle? Sudden idle surges? Well, all that is likely to be triggered due to a malfunctioning reductant injection valve. Repair or replace yours now from Parts Avatar. We are just a click away!
2. Diesel exhaust fluid pump - A dirty diesel exhaust fluid pump can end up being the chief host inviting the error code P2048. So replacing one can be one of the wisest decisions to avoid a problematic system.
3. Exhaust system parts - Because of distorted exhaust system parts the first thing you may notice is lack of power while accelerating and a deterioration in the overall performance of the engine. Tune into Parts Avatar if you wish to restore or repair your exhaust system parts.
4. Diesel exhaust fluid - This essential thing performs the function of regulating a smooth functioning of the DEF system parts. If contaminated, it can be problematic for the overall functioning of the vehicle. Log into Parts Avatar now for your new DEF offered just at the most affordable price.
5. Diesel particulate filter - Having problems with the diesel particulate filter? It should be noted that diesel particulate filter is an important part in the vehicle and needs proper care and attention by you to ensure long lasting operation. Repair or replace now if you want to prevent an erroneous system.
6. DEF injector - Hate the halts? Well, it could be triggered due to a fault in the DEF injector. It should be noted that a malfunctioning DEF injector often leads to a no start condition. We advise you to get your DEF injector changed as soon as possible.
7. Powertrain control module - A large number of erratic symptoms are likely to accompany along a damaged PCM. The unit enables the system and transmission to work in tandem. So a defective PCM can affect not only a few parts but the functioning of the entire system. Tune into Parts Avatar for top notch sets of PCM.
8. Digital volt ohm meter - Generally, all the OBD code issues require a deep insight into the problem and high grade tools in order to fix it properly. Thus, buy quality diagnostic tools from us!
9. Reductant injector wiring harness - The reductant injector wiring harness helps in regulating the smooth idling of the engine in addition to acceleration and performance. So a faulty one is likely to disturb the whole functioning. We advise you to get yours changed or repaired now.
10. Exhaust gas temperature sensor - Do you know what? Engine misfires, decrease in power and lack of acceleration are some of the most common problems encountered after the exhaust gas temperature sensor is diagnosed as defective. Now get your error code fixed with Parts Avatar now!

Interested in knowing the symptoms to obd code P2048? If yes, then you have arrived at the right place. We at PartsAvatar have listed out few common symptoms associated with this fuel injector problem.

Common Symptoms

• Falling engine performance
• Black smoke emissions from vehicle exhaust
• Poor fuel economy
• Other codes related to SCR

After understanding the symptoms and few common causes behind the OBD error code, we are here to help you out in understanding the ways and means to correct the issue. To solve any issue you need to follow certain steps, and to solve OBD error code P2048, you will need to undergo the following replacements:

• Repair or replace all the defective electrical wiring and other related components
• All the leakages in the exhaust system should be fixed
• Make sure amendments are performed to fix all the malfunctioning exhaust gas temperature/pressure sensors or circuitry
• Mend or restore a faulty exhaust gas temperature/pressure sensor and reductant injector air controller

Apart from the fuel injector, you might need to undergo few more replacements. You might need reluctant injection valve, diesel exhaust fluid, exhaust system, DEF fluid, DPF, DEF injector, PCM, DVOM, reductant injector wiring harness, exhaust gas temperature sensor and many other parts. Where to get them from? Well, if you want quality parts, then we can prove to be your dream destination.

It is essential to diagnose this fault code. Here are some steps which a mechanic should follow for diagnosing the problem that triggered a P2048 code to be stored:

• Firstly, an OBD-II scanner should be used to check for a stored P2048 trouble code
• Then, a visual inspection should be performed of all the wiring and the associated electrical components for any signs of physical damage
• Visually inspect all the exhaust leakages present in the system, the exhaust gas temperature/pressure sensor and circuitry surrounding it
• Then the exhaust gas temperature sensor connector and sensor should be disconnected from the system
• Also, one should be careful while checking the resistance of the exhaust gas temperature/pressure sensor (as it should read approx. 150 ohms)
• Lastly, perform a continuity test on sensor wire carefully

Common Mistakes When Diagnosing the P2048 Code

Here we have listed a few common mistakes that should be avoided:

• A fault in the DEF injector
• A defective powertrain control module (PCM)
• Wiring issues in the system