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Error Code P242B: What It Means & What To Do?

OBD Code P242B - Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 1 Sensor 3

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The trouble code P242B can be described as Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 1 Sensor 3. The error code P242B would start triggering when the PCM would detect some fault in exhaust gas temperature sensor circuit. One thing which you must keep in mind that its symptoms as well as causes would surely vary as it depends upon a number of things.

Learn More About OBD Error Code P242B

Don’t worry if P242B error code is triggering again and again. We offer wide range of auto parts at affordable prices to our dear customers. 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. The P242B trouble code would indicate that an exhaust gas temperature sensor circuit which is not as per the predetermined limit has been detected by the ECM. Now when this would occur, the fault code would be stored and there would be an illumination in the malfunction indicator light. “Bank 1 Sensor 3” here refers to a particular sensor at a specific location in the exhaust stream.


What causes this problem with the Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 1 Sensor 3?


  • Defaults in the exhaust gas temperature sensor bank 1 sensor 3
  • Exhaust gas temperature sensor bank 1 sensor 3 harness might be unlocked
  • Exhaust gas temperature sensor bank 1 sensor 3 circuit might have bad electrical connection
  • Leakage in the exhaust
  • There might be a lot of particulate matter build up on sensor

Replace/Repair These Parts to Fix OBD Code P242B

  1. Engine Control Module - Is your car engine light still staying ON after resetting or your car engine is turning off for no reason? Then these are some common symptoms indicating that your car engine control module is defective.
  2. Exhaust Gas Recirculation Valve - Are you facing some engine performance issues? If there are some flaws in the EGR valve, then it would disrupt the automobile’s air fuel ratio which would ultimately cause engine performance problems like decrease in power, reduction in fuel efficiency as well as issues related to acceleration. Replace it as soon as possible.
  3. Powertrain Control Module - The PCM works as the central computer system in an automobile’s mechanism. This auto part is the in charge of all the constituents as well as the functions performed by them. Having such enormous importance in the operation of all the parts means that any defect in it will affect almost every aspect of a car.
  4. Oxygen Sensor - An oxygen sensor plays a vital role in the fuel delivery system and air to fuel ratio mixing functions. Without this sensor proper combustion of fuel cannot take place, thus causing performance issues. Also the exhaust system will not be able to detect the emissions properly if this sensor becomes inactive, resulting in increased emissions from the exhaust. Thus replace faulty oxygen sensor today!
  5. Electronic Control Unit - The ECU is a major component of your car's onboard computer. It's used to regulate many systems and subsystems in your car's engine, drive train and other major components. Visit us to buy best quality ECU online.
  6. Diagnostic Tools – Take help of a professional mechanic to diagnose OBD code error. Use high grade diagnostic tools to resolve this issue. Buy new tools and equipment form us

Symptoms of OBD Error Code P242B

Next important thing you need to know about are the common symptoms for this OBD error code P242B with your fuel volume control.


Common Symptoms


  • Illumination in the service engine soon light
  • Lack of power
  • Some drivability related issues

How To Correct P242B Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 1 Sensor 3

To correct this issue you might need to undergo few replacements for the defective parts such as:


  • Rehabilitate the defaults in the PCM/ECM
  • Make sure to mend the faulty wiring to the EGT sensor
  • Repair or replace the quirky EGT sensor
  • Carefully adjust the faults in the ECM
  • Recondition the non-functioning catalytic converter
  • It is necessary to perform proper Diesel Particulate Filter Regeneration procedure with a scanner

 

There is no need to get strained if your OBD Code is still flashing up as we are here at your service. Have a look at our superior variety of pcm, fuel injector, powertrain control module, new fuel injectors, body control module, injection pump, fuel injection kit, fuel injector tester, pcm module, ecm module, electronic control module, fuel injection pump, fuel injection pump, diesel fuel injectors and many more. Now all your problems would vanish within no time.

Easy Diagnosis Of Engine Error OBD Code P242B

Here are some steps which you should follow in order to diagnose this fault code:


EPA (Environmental Protection Agency) emissions requirements for catalytic converter systems on diesel engines have been relatively lax, until stricter regulations were implemented between 2007 and 2010. Now as more complicated catalyst systems has been introduced, it is very essential that the mechanic should spend extra time to study the particular system that they are working on.


First of all a scanner should be connected to the automobile to inspect as well as monitor for all codes and appropriate data should be the first step. There is a different programming of every manufacturer and design specifications that will dictate the procedures to be followed for the diagnosis of their specific system. Here are some steps which the technician should follow:


  • First of all the automobile should be scanned for all the stored codes.
  • The catalytic converter system should be visually inspected.
  • The connector at the affected sensor should be disconnected and inspect for resistance and or voltage specifications provided by the manufacturer. It should be done for the sensor, wiring to the sensor and the PCM.
  • There are some manufacturer-specific procedures which should be followed while doing this.
  • Run various bidirectional tests with the scanner (just keep in mind that these tests are particular to each manufacturer and can only be carried out by using a scanner).
  • After that the technician should evaluate the freeze frame data.
  • Observe the exhaust gas temperatures on a test drive to duplicate the conditions shown in the freeze frame data (these codes will often occur under specific conditions, such as towing a heavy load up a steep grade).
  • The EGT sensor should be removed and inspect for contamination.

Common Mistakes When Diagnosing The P242B Code


It might be very difficult to diagnose this error code. That is the reason why there are many shops which won’t work on diesel engines. Keep this thing in mind that the emissions systems for diesels are different from gas engines. The diesel engines are not as common as gas powered automobiles and that’s why there are a lot of shops which do not work on diesels due to their relative rarity in comparison to gas powered automobiles.

Other Diagnostic Codes Related To OBD Code P242B

P242A - Exhaust Gas Temperature Sensor Circuit Bank 1 Sensor 3

P242C - Exhaust Gas Temperature Sensor Circuit Low Bank 1 Sensor 3

P242D - Exhaust Gas Temperature Sensor Circuit High Bank 1 Sensor 3

P242E - Exhaust Gas Temperature Sensor Circuit Intermittent/Erratic Bank 1 Sensor 3