P2050 OBD-II Trouble Code: Reductant Injector Circuit/Open Bank 2 Unit 1

Our certified mechanics come to you · Get a fair and transparent estimate upfront

Red stars EXCELLENT RATING ON

Cost of diagnosing the P2050 code

P2050 is a diagnostic trouble code (DTC) for "Reductant Injector Circuit/Open Bank 2 Unit 1". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $154.99 . Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $50.0 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

Cars Estimate* Credit towards follow-up repair Earliest Availability
Ford $154.99 $50.0
Toyota $154.99 $50.0
BMW $164.99 $50.0

*Estimates may vary by market

SCHEDULE P2050 DIAGNOSTIC Get a fair and transparent estimate upfront

P2050 code definition

The P2050 OBD-II fault code indicates the Powertrain Control Module (PCM) has detected an issue in the reductant injector air pressure sensor circuit. The reductant injector is a component which reduces toxic emissions from the catalytic converter or diesel particulate filter - depending on the vehicle’s type of engine. The issue specifically relates to the bank of the engine that possesses the number two cylinder, which can be helpful to a qualified mechanic in narrowing down where to inspect for problems.

What the P2050 code means

In the most simplistic of terms, the P2050 code indicates an open circuit detected by the PCM. This open circuit, however, is most likely produced by a malfunction in the operation of the catalytic converter (or diesel particulate filter in a diesel-powered engine). Such a malfunction affects the quality of fuel mixture.

What causes the P2050 code?

An issue with the operation of the catalytic converter or diesel particulate filter triggers an open circuit signal from the reductant injector on the bank of the engine housing the number two cylinder. When the PCM detects this signal, it registers the P2050 code and turns on the Check Engine Light on the vehicle’s dashboard.

What are the symptoms of the P2050 code?

Once the P2050 code triggers the Check Engine Light to illuminate, the vehicle may display the following symptoms:

  • Black smoke emitted when the vehicle accelerates
  • Reduced fuel efficiency

How does a mechanic diagnose the P2050 code?

A mechanic must first verify the existence of the P2050 OBD-II trouble code with the use of a specialized scan tool. This tool connects to the PCM and collects an array of data that helps to determine the validity of the code and point to the most likely cause. Unlike the scan tools available in auto parts stores, this particular tool is more accurate, has a broader scope, and is solely distributed to certified technicians for use.

Such a certified technician may also perform a manufacture pinpoint test or repeat scans under different driving circumstances to gain further insight into the nature and severity of the problem.

Common mistakes when diagnosing the P2050 code

While making a diagnosis after the P2050 code has registered, the most common mistakes a technician may make are:

  • Not verifying the reductant injector air pressure sensor circuit is open

  • Failing to perform a thorough visual inspection of the catalytic converter or diesel particulate filter and related components

  • Forgetting to clear the P2050 OBD-II trouble code once the issue has been repaired

  • Mistaking the oxygen sensor for the exhaust gas temperature sensor and replacing the wrong component

How serious is the P2050 code?

While a vehicle can still run once the P2050 code has registered, the fuel mixture is less than ideal. This can produce unwanted pollutants and greatly reduce fuel efficiency.

What repairs can fix the P2050 code?

Once a trained technician has validated the P2050 code with a specialized scan tool, the following repair(s) may be in order:

  • Repairing a leak in the exhaust system
  • Replacing damaged connectors, terminals, or wiring associated with the reductant injector
  • Replacing the exhaust gas temperature sensor

Additional comments for consideration regarding the P2050 code

Whenever an OBD-II trouble code, such as P2050, registers, diagnosing the nature and cause of the code can take up to several hours. After the code is verified by a certified mechanic using a specialized scan tool, multiple tests may be in order along with a visual, hands-on inspection. Also, once repairs have been made, the mechanic should test drive the vehicle and perform another scan to ensure the problem has been resolved.

Need help with a P2050 code?

YourMechanic is able to connect you with a certified mechanic capable of diagnosing and repairing your vehicle. That mechanic can also travel wherever needed, including your home or office, for your convenience. Receive a quote and book your appointment online or discuss the situation with a service advisor at 1-800-701-6230.

Check Engine Light
trouble codes
P2050

No more waiting rooms! Our mechanics will come to you to diagnose and fix the P2050 code.

SCHEDULE P2050 DIAGNOSTIC
Get a $50 credit for the follow-up repair

Recent Check Engine Light is on Inspection reviews

Excellent Rating

(8600)

Rating Summary
8017
273
65
46
199
8017
273
65
46
199
 at YourMechanic

Brandon

9 years of experience
133 reviews
Brandon
9 years of experience
Ford Escort L4-2.0L - Check Engine Light is on - Nashville, Tennessee
Brandon showed up ahead of schedule, was very personable and diagnosed my problems. He also scheduled my next appointments which will be with him.
 at YourMechanic

William

23 years of experience
33 reviews
William
23 years of experience
Lexus IS250 V6-2.5L - Check Engine Light is on - Mableton, Georgia
Arrived early which was great. William was courteous, and attentive to the issue. Even though it took several attempts I'm so happy he was determined to fix it and he did!
 at YourMechanic

Dan

40 years of experience
1080 reviews
Dan
40 years of experience
Plymouth Grand Voyager - Check Engine Light is on - Lawrenceville, Georgia
Mr. Dan Barber was quite patient, courteous and quite knowledgeable. From my observation, Mr. Barber appears to be quite professional.
 at YourMechanic

Christopher

9 years of experience
120 reviews
Christopher
9 years of experience
Ford Fiesta L4-1.6L - Check Engine Light is on - Smyrna, Georgia
Chris communicated with us each step of the way up until his arrival. He listened well, was knowledgeable, and was prepared. He took the time to diagnose the problem, explained the what, why and how and provided a solution. I would definitely recommend him and will use him again.


More related articles

P2279 OBD-II Trouble Code: Intake Air System Leak
P2279 code definition Intake Air System Leak What the P2279 code means P2279 is an OBD-II generic code for the engine control...
P2145 OBD-II Trouble Code: Exhaust Gas Recirculation Ventilation Control Circuit High
P2145 P2145 Code Definition A P2145 code is a generic powertrain code related to fuel and air metering and auxiliary emissions controls. This code is stating that the exhaust gas recirculation (EGR) vent control circuit is registering a high input...
P3444 OB2-11 Trouble Code: Cylinder 6 Deactivation/Intake Valve Control Circuit High
What What the P3444 code means This code indicates that there is a problem with your intake valve on cylinder number 6. Your vehicle’s control module identifies that the measured values from the manifold absolute pressure (MAP) sensor, the throttle...

Related questions

High idling, check engine light on
The Check Engine Light being on indicates there is a problem and a code will have been set. Have the light checked for codes and then get a professional to thoroughly diagnose the Check Engine Light (https://www.yourmechanic.com/services/check-engine-light-is-on-inspection) to see what...
My Check Engine Light is on and my car barely wants to go.
When the code P0700 is set in the Powertrain Computer, it means that the Powertrain Computer or PCM is seeing greater than a specified RPM difference between the rotational speed of the Input RPM Sensor and the Transmission Output RPM...
2008 Kia Rond. Warning light for emissions system came on. Safe to drive? What do I do? Just passed inspection in January.
HI...If the check engine light, or an emissions warning light, is on, one or more diagnostic trouble codes have been set. The first thing to do, though, is make sure that your gas cap is on securely and that there...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com