P2204 - OBD Trouble Code
OBD Code P2204 - NOx Sensor Circuit Intermittent Bank 1
The trouble code P2204 can be
explicated as NOx Sensor Circuit Intermittent Bank 1 Issue. This trouble code
is generic, which would mean that it can apply to all the vehicles which are
equipped with the OBD-II or the vehicles which are made since 1996 up to the
present. The specifications on the definition, the troubleshooting steps as
well as repairs can always vary from one vehicle make to another. This can
happen because of a lot of reasons and the mechanic should diagnose the
specific cause for this code.
Learn More About OBD Error Code P2204
Like oxygen sensors, NOx sensors
will not work unless they are at the correct temperature, so they have an
integrated heater that is also module-controlled. The power supply to the NOx
sensor module is critical to proper sensor operation. When the PCM detects that
the NOx sensor circuit is not performing as per expectations, OBD code P2204
gets stored in the system.
What causes this problem with the NOx Sensor Circuit
Intermittent Bank 1?
- Faulty/Damaged MAF Sensor
- Leaky/Cracked rubber hoses from
vacuum to intake tube
- Heavily Contaminated Catalytic
Converters
- Faulty/Damaged wiring harness to the
sensor circuit
- Open/contaminated EGR (Exhaust Gas
Recirculation) valve
- Faulty PCV (Positive Crankcase
Ventilation) valve
- NOx sensor problematic
- NOx circuit wiring and connector
damaged
- Faulty MAP (Manifold Absolute
Pressure) sensor
Replace/Repair These Parts To Fix OBD Code P2204
- Engine Control Module - The solenoid might cause a short
in the engine control module because of corrosion in the solenoid or the wire
running from the solenoid to the ECM harness.
- Electronic Control Unit - The ECU power
management control module keeps in check the hybrid battery charging functions.
If the ECU is faulty, the battery pack will not be able to properly get charged
and thus, the ECU might need replacement.
- Powertrain Control Module - A trouble with the PCM would mean
that it is unable to determine the right fuel mixture and would send the car
engine either more or less fuel than it requires. Now when the engine gets
more, the carbon emission would increase and fuel economy would drop. In case
of the opposite, the engine will choke, stutter, and might start stalling
sometimes.
- Fuel Injector - Bad fuel
injectors can cause starting issues, poor idles and affected performance. Thus,
the replacements are in order. Buy new fuel injectors now!
- Exhaust Gas Recirculation Valve - If the PCM detects any fault in the vehicle’s EGR valve circuit,
it will set up the check engine light so that the driver is notified about the
fault. Properly check for the EGR valve faults leading to this OBD code getting
stored in the system. Get
the faulty EGR valve replaced or else this fault code can turn up.
- Diesel Exhaust Fluid Pump - Faulty DEF pump can lead to increased emission and affected
vehicle performance. It can also hamper the fuel economy and the power output
of the vehicle. Thus, replace faulty DEF pump now!
- Diagnostic Tool
-
Usually any OBD code problem requires deep insight into the problem and high-grade tools in order to fix it
properly. Thus, buy quality diagnostic tools form us!
- Fluid Pump Control Module - If the control module is faulty, the pump will not be able to work properly and will not be able to transfer fluid to the transmission and hydraulic system efficiently. Thus, replacements are in order.
- Oxygen Sensor - The O2 sensor
can also be at fault leading to lean or rich engine conditions and thus
affecting the engine performance and improper fuel consumption. Buy new sensor
and replace the faulty one now!
- Engine Coolant Temperature
Sensor - If there are some issues in your car engine coolant temperature
sensor, then it would result in the illumination of the check engine light. The
check engine light would keep on flashing until the problem is addressed. Buy
new engine coolant temperature sensor from us online.
Symptoms Of OBD Error Code P2204
For
us our customers are everything, and that’s why we will help you to diagnose
P2204 code by mentioning some important symptoms below:
Common Symptoms
- Reduced/abnormal
engine performance
- Affected
fuel efficiency
- Lean
exhaust codes
- Increased
emissions from the tailpipe
How To Correct P2204 NOx Sensor Circuit Intermittent Bank 1
Wish to correct this error code with
your vehicle? Do you know what all you should do to make your car free from
this code? Well, don’t worry! We are here to guide you.
- Bad fuel injector replacement
- Bad NOx sensor replacement
- NOx sensor circuit wiring and
harness replacement
- Diesel Exhaust Fluid Pump
replacement
- EGR valve replacement
- Faulty wiring and connector repairs
- Powertrain Control Module repair and
reprogramming
Apart from this, you might need to replace other damaged parts too like Diesel Exhaust Fluid, Diesel Particulate Filter, PCM, ECM, NOx sensor, NOx sensor Wiring, NOx sensor Connector and more. You can easily find all these parts with us. Not only that you can get these parts shipped to your door free, if your cart value happens to exceed $99.
Easy Diagnosis Of Engine Error OBD Code P2204
If you want to easily diagnose this
fault code, then all you have to do is to follow the steps which are mentioned
below:
- Take the help of an experienced
mechanic who will visually inspecting the exhaust system.
- Find and freeze frame data with the
code. Then, clear the code and take the vehicle on a test drive under the same
conditions.
- If the code reappears, perform a
visual inspection of the components and its wiring.
- If the wiring is okay, the injector
itself will be tested to confirm operation.
- The mechanic will repair or replace
faults in relation to the reductant injection air pressure sensor, DEF pump and
EGR valve. Also check for any wiring and harness issues and correct the damaged
wirings.
- Check for the voltage output from
the EAS fuel injector and if it isn’t under the desired range, suspect it to be
fault and might need replacement.
- The NOx sensor voltage output must
be check for and replaced if not functioning properly. Also check for the
faulty/damaged wiring and harness in association to the sensor circuit.
- If there is no problem found, check
for the faulty ECU. Although, this fault is very rare but can be a reason for
problematic exhaust system, thus hampering the engine performance. The ECU
needs to be replaced in such condition and has to be reprogrammed to erase any
stored faulty error.
Common Mistakes When Diagnosing the P2204 Code
- Powertrain Control Module (PCM)
faulty
- Exhaust NOx sensor issue
- Wiring and connector issue