P2200 - OBD Trouble Code

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A P2200 code means that the PCM has detected readings in a NOx (nitric oxide/nitrogen dioxide) sensor circuit that’s out of parameters for a specific engine bank. The PCM analyzes data on exhaust gas composition and temperature from the engine’s oxygen sensors, and calculates typical limits for NOx sensor circuit inputs. If these levels aren’t detected, the PCM will store a hard trouble code and illuminate the malfunction indicator lamp (MIL).

The P2200 code is set when the ECM detects a fault within the bank #1 NOx sensor or circuit.

On engines with more than one bank of cylinders (e.g. V6, V8), bank 1 is the side of the engine that contains the #1 cylinder. Therefore, the NOx sensor is located in the exhaust of that bank. Refer to your service manual for specifics for your make/model/powertrain. This is the main resource where you can decipher which, out of a possible multitude of sensors, you are dealing with. They use similar distinctions with oxygen sensors.

What causes this problem with the NOx Sensor Circuit Bank 1?

• Damaged NOx sensor
• NOx sensor dirty
• Flawed MAF/MAP sensor
• Affected catalytic converter
• Damaged wiring harness
• Internal ECM/PCM issue
• Connector and wiring problem

1. Engine Control Module - There can be some engine performance issues due to faulty engine control module. If the ECM fails or has any problems it can lead to performance issues with the vehicle like misfires, hesitation, loss of power, and sometimes even decreased fuel economy.
2. Exhaust Gas Recirculation Valve - Did you just see check engine light flashing on your dashboard? If the computer would detect some fault with the automobile’s EGR valve circuit, then it would set up the check engine light so that the driver is notified about the fault. Don’t waste time and get them replaced or else this fault code can turn up.
3. Diesel Exhaust Fluid Pump - The diesel exhaust fluid pump needs to work properly if the transmission system has to perform. If it is not functioning, the transmission may slip and cause harsh shifts too. Thus, replace faulty pump now and buy a new one from us!
4. Fuel Injector - Facing some issues in starting your vehicle? Poor idle issues? Failed emissions? These are all the symptoms of bad, faulty, leaking and clogged fuel injectors. It would be a good decision to replace your defective fuel injector with a new one online.
5. Powertrain Control Module - PCM stands for powertrain control module. It is a car part, a control unit which is utilized on motor vehicles. It is generally a combined control unit, consisting of the engine control unit (ECU) and the transmission control unit (TCU).
6. Electronic Control Unit - If your automobile's check engine light remains on constantly, and never goes off, there's a good chance that your vehicle has a damaged electronic control unit. There are a lot of reasons why a car's check engine light will remain on. The most common reason is a defective ECU.
7. Diagnostic Tools - It is always advisable to use correct tools and equipment while resolving any OBD code issue as even small mistakes can lead to wrong diagnosis. Thus, always take help from a professional who has the knowledge and experience to such tools in efficient manner. Buy new quality diagnostic tools from us today!
8. Mass Air Flow Sensor - Replace faulty MAF sensor to avoid wrong reading of the intake air sending to the PCM, thus affecting the fuel delivery system. Buy new sensors from us now!
9. Fluid Pump - If the fluid pump is physically damaged, it can result in leakages, loss of pressure and harsh shifting. Thus, the fluid pump must be replaced, if found damaged. Buy new fluid pump from us now!
10. Engine Wiring Harness - The broken wires in the wiring harness might lead to some serious engine problems. So, make sure that you replace your faulty engine wiring harness to avoid such situation.
11. Oxygen Sensor - Inspect for faulty O2 sensor that can affect the engine combustion process and the exhaust emissions. Thus, it is important to understand its importance and replace faulty oxygen sensor now!
12. Engine Coolant Temperature Sensor - The engine coolant temperature sensor is also known as the coolant temperature switch. It is an engine management system sensor which is utilized to monitor the temperature of the engine’s coolant. If there are any faults in the ECT sensor, then it would lead to engine performance issues. Purchase high grade engine coolant temperature sensor from us online.

It is essential to know the symptoms of an issue as only then you would be able to solve the problem. So that’s why we have listed out some major symptoms of OBD Code P2200 here:

Common Symptoms

• Increased hydrocarbon emissions
• Check engine light illuminated
• Fuel economy inconsistent
• Erratic Idle
• Excessive smoke from exhaust

Here are some ways with the help of which you will be able to correct the OBD Code P2200

• Replacing damaged connectors, terminals, or wiring associated with the NOx sensor
• Make sure to mend faulty electrical connection
• Replacing MAP/MAF sensors
• Oxygen sensors replacement
• It is essential to restore the flawed exhaust gas pressure temperature sensor
• Rehabilitate the defaults in the wiring harness
• Carefully adjust the leakage in the exhaust

There is no need to be anxious as Parts Avatar – Car Parts Online is here to help you out! We have high grade PCM, Oxygen Sensor, Nox Sensor, Malfunction Indicator Lamp, ECM, Coolant Temperature Sensor, Mass Air Flow Sensor, Manifold Air Pressure Sensor, Fuel Pressure Sensor, Fuel Injection Component, Catalytic Converter and a lot more for our precious customers.

It is essential to diagnose this fault code. Here are some steps which a mechanic should follow for diagnosing the problem that triggered a P2200 code to be stored:

• Visually inspect the NOx sensor and the harness. Make sure the sensor is intact and looks good. Keep in mind, some of these harness' may be routed in close proximity to the exhaust so there is a possibility of wires getting burnt/ melted and causing all sorts of problems.
• Check of the sensor is dirty and clean it.
• Check for faults in the MAF (Mass Air Flow) sensor wiring and connectors and should be intact, not frayed, broken, routed too close to ignition wires/coils, relays, motors, etc. Also check for any obvious leakages in the air intake system.
• Closely inspect the MAF sensor wires or film to see if you can see contamination such as dirt, dust, oil, etc. Replace the air filter, if dirty, with a new original equipment filter from the dealer. Clean the MAF carefully, using MAF cleaner spray.
• Check, if the air intake system has a mesh in it, and clean as necessary. Check for the faulty MAP for vacuum leakages and replace if necessary. Inspect for any vacuum leaks downstream of the MAF sensor. Use an OBD-II scan tool to monitor real-time sensor values from the MAF sensor, O2 sensors, etc.

Common Mistakes When Diagnosing the P2200 Code

• The technician might not verify the NOx sensor circuit issues.
• He might not perform a thorough visual inspection of the catalytic converter or diesel particulate filter and associated components.
• Sometimes forgetting to clear the P2200 OBD-II trouble code once the problem has been repaired.
• The mechanic might set confused in the identity of the oxygen sensor for the exhaust gas temperature sensor and might restore the wrong component.