Error Code P2487: What It Means & What To Do?

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The trouble code P2487 can be described as Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 2 Sensor 5. This means that the PCM has noticed a high voltage output from the exhaust gas temperature sensor 5 of engine bank 2 which is situated along cylinder 2 of the engine, thus causing P2487 code to trigger.

Don’t worry if P2487 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 P2487 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 2 Sensor 5” here refers to a particular sensor at a specific location in the exhaust stream.

If the PCM detects a high voltage output from the EGT sensor 5 bank 2, OBD code P2487 gets stored in the system.

What causes this problem with the Exhaust Gas Temperature Sensor Circuit High Bank 2 Sensor 5?

• Faulty exhaust gas temperature sensor Bank 2 sensor 5
• EGT sensor Bank 2 sensor 5 harness and wiring might be unlocked or damaged or corroded
• Poor electrical connections to EGT sensor Bank 2 sensor 5 circuit
• Leakage in the exhaust system components
• Increased levels of particulate matter build up on sensor

1. Electronic Control Unit - ECU monitors the temperature differences in the boost converter with the help of the temperature sensors to prevent the converter from overheating and malfunctioning. Thus, replace faulty ECU immediately.
2. Engine Control Module - ECM failures and faults can be very difficult to find and resolve as these are very rare and might require a complete reprogramming of the system to avoid wrong codes from getting stored in the system, leading to misdiagnosis. Replace it now!
3. Powertrain Control Module - Faulty PCM can disrupt the normal functioning of the vehicle by affecting the transmission system and the fuel delivery system. This will cause the system to store wrong OBD error and thus can lead to misdiagnosis.
4. Oxygen Sensor - If the fuel to air ratio is not correct, the engine may work in lean or rich conditions. This not only hampers the performance output, but also affects the fuel economy, exhaust emissions and acceleration. Thus, a faulty oxygen sensor must be replaced as if it important for keeping in check the oxygen levels entering/exiting the engine.
5. 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.
6. Diagnostic Tool - In order to be that DIY guy, you need few diagnostic tools to get your car problems pointed out easily. Our diagnostic tools collection will come handy to do so, so why not have a look?
7. Fuel Injector - The fuel injector is responsible for maintaining the optimal levels of the air to fuel ratios in the combustion chambers for the maximum out from the engines. It the fuel injector goes down, it hampers the entire efficiency of the engine. Thus, check and replace the bad injector now!
8. Diesel Exhaust Fluid Pump - If the DEF pump is not functioning properly, the exhaust system will not be able to properly manage the harmful emissions from the vehicle and can also result in inefficient fuel consumption. Thus, replace it now, if found defective.
   
9. Exhaust Gas Temperature Sensor - A failed emissions test is another symptom of a problem with the EGR temperature sensor. There can be instances where the sensor can fail or give a false reading and cause the EGR system to malfunction, without setting off the Check Engine Light. This can cause the vehicle to fail an emissions test, which can be an issue for states with strict emission regulations.

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 P2487 here:

Common Symptoms

• Engine stalling and not starting
• Black smoke from tailpipe
• Rough engine idles
• Failed emission tests
• Knock sound from the engine
• Service engine soon lamp illumination

Here are some ways with the help of which you will be able to correct the OBD Code P2487.

• Replace faulty wiring and connectors to the EGT sensor circuit
• Repair or replace the damaged EGT sensor
• Carefully reprogram the ECM
• Replace faulty catalytic converter
• Perform proper Diesel Particulate Filter Regeneration procedure with a scanner

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Here are some ways with the help of which you will be able to correct the OBD Code P2487.

• Use a scan tool and put it in vehicle's OBD-II port to confirm presence of P2487 error code.
• Data is freeze framed and vehicle speed, operating temperature, engine speed, and operating time is checked for when the code was detected.
• A road test is performed with a scan tool installed in the OBD-II port to confirm an issue is present.
• Visually inspect the wiring on both oxygen sensors for damaged/broken wiring, swapped connectors, or wiring shorted to ground or power.
• Use a multimeter to check that no wiring the distorted or short.
• Low grade replacement catalytic converters are susceptible to repeated failure and should be avoided and replaced with a quality one.
• Search technical service bulletins (TSB) in your vehicle information source. If you find one that matches the symptoms and code/s presented by the vehicle in question, it will very likely aid you in your diagnosis. TSB listings are compiled from thousands of successful repairs.
• Check for any faults in the EGT sensor and the leakages in the exhaust system and replace the faulty components. Always re-test the system after performing any conclusive diagnosis.
• Check for the car’s ECU (Engine Control Unit) and replace if needed.

Common Mistakes When Diagnosing the P2487 Code

• Replacing EGT Sensor without checking problems with other components
• Replacing PCM directly
• Not checking for faulty/damaged wirings and connectors related to circuit and sensors