P242A - OBD Trouble Code

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The trouble code P242A can be explained as Exhaust Gas Temperature Sensor Circuit Bank 1 Sensor 3. This diagnostic fault code is a generic powertrain code, which means that it would apply to the OBD-II equipped vehicles. The specific repair steps can vary as it depends upon the vehicle make and model. The engine control module, powertrain control module or the transmission control module monitors this circuit depending upon the particular automobile.

Do you want to know more about the P242A fault code? Don’t worry! Parts Avatar Canada is here at your service. If the engine control module would detect a variation in the voltage coming from the exhaust gas temperature sensor that is outside the parameters set by the automobile manufacturer, then it would store the P242A error code. This would also give rise to the illumination of the check engine light.

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

• The connectors or terminals might be sometimes loose or corroded
• Faulty wires or missing insulation might cause a short directly to ground
• Unusable sensor
• There might be a cat back exhaust system without EGT provisions installed
• Failure in the computer

• Exhaust Gas Recirculation Valve - It is auto part commonly found on many road going automobiles. It is a part of the vehicle’s exhaust gas recirculation (EGR) system, an emissions system that is designed to recirculate exhaust gases back into the vehicle’s intake so that it can reduce cylinder temperatures and NOx emissions. Purchase top notch exhaust gas recirculation valve from us at economical prices.
• Engine Control Module - If there is any corrosion or breaks in the internal wiring of the harness, then it can cause a short in the ECM or can also cause corrosion in the ECM through the wiring harness. You can always rely on us as we have best auto parts for our customers.
• 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!
• Powertrain Control Module - The onboard computer, or powertrain control module is the brain of the engine control system. Now if the brain is not working properly, then neither is the car engine. Get it replaced before the situation gets worse.
• Electronic Control Unit - Is your car jump starting on reverse polarity? Or are you facing some intermittent starting issues? If yes, then it indicates that your electronic control unit is bad. So it is very important to replace the defective electronic control unit with us at equitable prices.
• Diagnostic Tools - Buy quality diagnostic tools to check and diagnose OBD code P242A error with the help of experienced mechanic. Visit us today.

Interested in knowing the symptoms to OBD code P242A? 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

• Check engine light might come into signal
• A code for a failure in the EGT sensor circuit would be set in the engine control module
• Car engine might start running too rich or lean
• Leakage of exhaust before the sensor

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.

• You must remove and clean the excessive soot and ash off of the EGT sensor
• Carefully adjust the faults in the EGT sensor
• Recondition the non-functioning wiring
• It is necessary to perform proper service of the exhaust leak in the pipe connection above the sensor
• Adjust the flawed electronic control unit

Apart from this, you might need to replace other damaged parts too like catalytic converter, pcm, oxygen sensor, ohmmeter, exhaust gas temperature, exhaust system, air fuel ratio sensor 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.

It is essential to diagnose this fault code. Here are some steps which a mechanic should follow for diagnosing the problem that triggered a P242A code to be stored:

• The mechanic or the technician will use a diagnostic scanner or code reader like DVOM to visually scan for the error codes in the vehicle.
• After performing a careful inspection, every of the stored codes and freeze frame data are retrieved as it can help down the way for further diagnosis process.
• He should scan as well as document the codes in the engine control module and then the freeze frame data should be looked upon for some failures.
• Most often he has to inspect the EGT sensor and wiring itself to see if they are faulty or damaged.
• Examine the exhaust temperature of the EGT sensor 3 for bank 1 and then it should be compared to the EGT sensor 2 for bank 1.
• After that the sensor should be replaced if its reading are not as per the specifications set by the manufacturer.
• Every time a repair work is carried out, make sure that the mechanic test drives the vehicle after every repair so that the diagnosis is successful. This can eventually help him to know as to where the error occurred.

 Common Mistakes When Diagnosing The P242A Code

• Many a times the mechanic might not remove the EGT sensor and forget to inspect for excessive soot or ash on the sensor.
• Make sure that the EGT sensor is cleaned properly and it should be retested first before replacing it directly.