P2428 OBD Error Code: Problem & Solutions

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The P2428 error code indicates that the PCM has found an issue with the exhaust gas temperature sensor circuit located in bank 1, which eventually is comprised of cylinder 1. In addition, the P2428 error code is related to the error code P2429.

A function crash within the exhaust temperature sensor results in an imbalance in the voltage reading sent to the PCM by the sensors within the exhaust system. Any differential in the voltage surpasses the vehicle builder’s restrictions activates an error code to be supplied and the Check Engine light to illuminate.

What causes this problem with the Exhaust Gas Temperature Too High Bank 1?

• Wiring, terminals, or connectors are loose, broken, burnt, and corrode.
• The exhaust gas temperature sensor has a short.
• The exhaust gas temperature sensor is defective.
• An aftermarket off road exhaust system most frequently causes a reduction in back pressure.
• A serious exhaust leak situated upstream by the exhaust gas temperature sensor.
• The engine overheats.

1. Powertrain Control Module - Irregular engine behavior could identify a defective or failing PCM. A failed computer may result cause a vehicle to abruptly stall or fail to start. If the PCM is dealing with any errors, it may resist the timing and fuel settings of the engine that might badly affect the vehicle as it is processing. A defective PCM may result in a vehicle to deal with a reduction in fuel efficiency, power, and acceleration. A defective PCM might cause a vehicle to fail in starting or be faced with issues to restart. If the PCM fails entirely, the vehicle stays dealing with a loss of engine power management, so it might fail to start or be faced with issues when it runs as an outcome. The engine may still crank, but obtain no crucial inputs that come from the computer, so it will evidently be unable of starting altogether.
2. Exhaust Gas Temperature Sensor – A major symptom commonly related with a defective or failing EGR temperature sensor is engine ping or knock sounds. If the EGR temperature sensor falters it will result in a problem with the EGR system flow. This can lead to rising temperatures in the cylinder, which can result in engine ping or knock noises. Engine ping or knock will sound like a metallic clattering noise that comes from the engine bay, and specifies that there is an error with the combustion procedure. Any error that causes the engine ping or knock sounds should be addressed to right away, as engine knock can lead to critical engine damage if it remains undetected. Another major symptom of a defective or failing EGR temperature sensor is an illuminated Check Engine Light. If the computer finds an error with the sensor circuit or signal, it will activate the Check Engine Light so this can affirm to the driver of a problem. A vast range of other problems can also trigger the Check Engine Light, so scanning the vehicle for error codes is highly considered. A faltered emissions inspection is another major symptom of an error with the EGR temperature sensor. There can be occurrences where the sensor can fail or send off a fault reading and result in a function crash in the EGR system, without activating the Check Engine Light. This can result in the vehicle to fail an emissions inspection, which can be a huge problem for conditions with firm emission normality.
3. Turbocharger -The turbocharger has a major role to making sure your car is running powerfully. A major symptom that you’ll easily notice is a power loss and slow acceleration. If you see that your car is unable to accelerate as quickly as it has before, the first thing you need to recommend is doing a check up on the turbocharger. To burn too much oil is usually an indicator of a failing turbocharger. Find the whereabouts of the downpipe, affront of the turbocharger, and disengage it. You can peer inside the turbine by using an endoscope, and if there is oil found inside, this is a sign of moderate failure. You need to resolve the issue as early as possible, but if left uncared for, your turbocharger will eventually fail. If the turbocharger housing has cracks and if there is wear in the internal seals, this might result in oil leaking into your exhaust. While the oil is burning off you will notice a definite grey or blue smoke. This symptom is more evident when the turbocharger is being in use. So if you see smoke when you increase the speed of your engine, it might be a sign of a defective turbocharger. On a majority of updated cars, the computer diagnostics will identify a failing turbocharger causing the check your engine to illuminate. This being stated, the CEL is shown when many problems rise to the surface, at times it makes us aware of an insecure gas cap and occasionally about far more critical problems. Any of these critical problems might be the turbocharger. It is better to have a mechanic take a look at your vehicle if the CEL is showing up. As the boost is running, a failing turbocharger could make a blaring whining sound. The noise often sounds like a loud siren, and it will get louder as the problem gets worse. If you see a strange noise compared to a few of the above symptoms, your turbocharger could be failing. A turbocharger enforces air back into the cylinders. If any cracks or broken seals are discovered, then you will lose some of that needed air. This frequently means the turbocharger will be overworking as a way to sustain that enforced boost. This is a rather generic error that results in a defective turbocharger. As for a majority of vehicles, everything has a certain lifespan. A turbocharger can usually last between 100,000 to 150,000 miles. This range is differential and is significantly based on the driver and their driving habitual.

If you are dealing with an OBD trouble code P2428, thus we identify these greatly recurrent symptoms that we can feel or touch. So we have written out a list to assist you in better comprehend this error.

Common Symptoms

• The engine is surging
• The fuse is blown (if this applies)
• All power is lost
• The engine oil specifies dilution coming out of the ECUs efforts to increase engine temperature. A few modern vehicles are advancing their fuel injection timing at a slightly after top center, to after burn a small quantity of fuel to hike up exhaust temperatures. A certain amount of this fuel makes its way to the crankcase. As the ECU finds the needs to reprocess the DPF, the service life expectancy of the oil is becomes short to a great degree.

After learning all about the symptoms of your vehicle’s issue, it gets easier to find the problem and start making a solution. So next thing to do is follow these generic steps in correct this problem with your car.

• Ensure vehicle does not have issues with overheating. In cases like these, repairing this situation is able to resolve the problem that is triggering the code.
• After testing all wiring and connectors, do a replacement on damaged, worn, corroded or shorted wires and connectors.
• If the exhaust gas temperature sensor is defective after eventual tests are made with the digital volt/ohmmeter and heat gun, the mechanic has to also replace this.
• The PCM could also be defective and should also be tested. After doing a testing round with the digital volt/ohmmeter, if the PCM is proven to be defective, the mechanic has to replace the PCM right away. After reprogramming this, the mechanic has to retest the system.

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It is crucial to diagnose this trouble code. There are some steps below that a mechanic has to follow to diagnose the error that activated P2428 code in being supplied:

• Do a visual testing all of the wiring and connectors.
• Utilize the digital volt/ohmmeter to determine the resistance of the exhaust gas temperature sensor.
• If existing voltage is within range of the manufacture’s identifications, and so you must heat the resistor by using a heat gun as you are leaving the leads of the digital volt/ohm meter that is attached.
• Overlook the resistance level of the sensor by using a diffused thermometer to check if the temperature reduces steadily.
• If the mechanic discovers a low voltage on the signal wire, disengage the PCM connector and conduct a progression of testing by using the digital volt/ohmmeter.
• After accomplishing the repairs, retest the system to ensure that the repairs are accomplished.
• Engage the advanced scanner to the diagnostic connector and ensure to make a recording of any supplied codes, as well as to freeze frame data. This data can be beneficial if there is an irregular setting that leads to the error code being supplied.
• Erase the P2428 error code and have the vehicle test-driven to affirm if the code is coming back.

Common Mistakes When Diagnosing the P2428 Code

A recurrent misdiagnosis happens when the mechanic accidentally specifies the oxygen sensor as the exhaust gas temperature sensor. In these cases, replacing the oxygen sensor is not going to solve the P2428 error code, as the problem continues. Additionally, ensure the engine doesn’t have a problem with overheating before doing a diagnosis on the code, as an overheated engine might be the exact source of the error.