The one I think it is, is the one which has the crows foot socket over it. Both the EGR temp sensors and the exhaust gas temp sensors are measuring exhaust temperature, but the platforms using EGR temp sensors measure the temperature of the gas entering the EGR cooler. I am trying to locate EGTS Bank 1 Sensor 2. The exhaust gas temperature (EGT) sensor plays an important role in controlling the emission levels of a diesel vehicle. Either way, the PCM will continually convert an exhaust temperature sensors' electrical resistance to an exhaust gas temperature while the engine is running, and the PCM will take appropriate action to reduce the exhaust gas' temperature based on this calculated value.
Before performing such a modification, you should check your state and local laws to make sure that there are no restrictions on such a procedure. Component failure: increases in exhaust temperatures can also contribute to the premature failure of other exhaust or internal engine components. One of the common causes of exhaust gas temperature sensor failure is exposure to excessively high temperatures – over 900°C in some case - the very thing they protect other components from. They are also easily damaged when replacing other components in the exhaust system. Refer to a vehicle specific resource to determine which is the appropriate bank and sensor location for your particular year / make / model / engine combination. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. In other words, its resistance decreases as the temperature increases. The P2471 code can be logged by various makes and models.
Resistance or no continuity is an indication of faulty wiring that is open or shorted and must be repaired or replaced. The P0546 code means Exhaust Gas Temperature Sensor (EGT) Circuit High Bank 1 Sensor 1. In some cases, multiple additional EGR, DPF, and or SCR (Selective Catalytic Reduction) related codes may be present along with code P246E. It is located between the exhaust manifold and the catalytic converter.
If the PCM detects a problem with one of the EGT sensors, on-board diagnostics (OBD) will log a P0544 code. They keep track of the temperature of the exhaust gases produced by the engine. Diagnosing this kind of trouble code might require you to use a scan tool and inspect the affected system for signs of damage. Here we explain what the exhaust gas temperature sensor does, why and how it fails, and how to replace it so you can take advantage of this fast-growing service opportunity with a quality, best-practice repair.
Ziptie to replace the one (black, IIRC) I had to cut. This exhaust gas is directed into the combustion chambers to reduce NOx emissions rather than being sent directly to the diesel particulate filter. Next disconnect the electrical connector and unscrew the sensor using a socket wrench, taking care not to damage nearby components. On diesel engines, exhaust gas temperature sensors are often used to monitor the temperature of the exhaust gas on either side of diesel particulate filters and catalytic converters. Try unplugging and reconnecting the sensor, maybe spraying some contact cleaner on both the plug and the socket. The vehicle may fail an emissions test. In the case of diesel particulate filters, the temperature of the exhaust gas is a fairly good indicator of the soot load in the filter, so when the temperature of the exhaust gas reaches a predefined threshold, the PCM will initiate a process that regenerates the diesel particulate filter to restore its ability to capture soot particles. What are some of the common causes of the code? Hello everybody, I'm the proud owner of a 2012 Jetta Sportwagen TDI with about 53, 300 miles on it and I've a couple of questions. How frequent are these kind of problem? Alternately, code P0545 may be present, indicating sensor circuit low. If you're not confident about your ability to recognize and diagnose the correct sensor, consult a professional.
Attempting to fix a P0544 code can be frustrating and confusing, especially without the right tools and automotive know-how. Excessively high exhaust gas temperatures can cause the failure of catalytic converters, DPF devices, mufflers, and other sensors in the exhaust system. I couldn't loosen the sensor, but disconnected its plug when trying to replace it. In most cases, it's best to take your vehicle to a professional mechanic. What are the symptoms of code P246E? P247A: Exhaust gas temperature sensor bank 1, sensor 3 – out of range. This sensor is referred to as an EGR temperature sensor, which is similar in operation, but has a different purpose. However, keep in mind that the steps for diagnosis and repair can vary, depending on vehicle specifications. If this process identifies the absence of a power source or ground, continuity testing may be required to check the integrity of the wiring, connectors and other components. This can result in an emissions test fail. The ECU utilizes the input to control engine conditions and effectively reduce emissions. If you still need help regarding the P247B trouble code, please post your question in our FREE car repair forums.
With vehicle ignition turned on, and the plug on the EGT sensor disconnected, measure the voltage at the sensor's connector – there should be 5 volts. Symptoms of a P247B trouble code may include: - Engine may stall. The temperature inside the DPF increases whenever it fills up with soot. Next is to check the connectors for security, corrosion and damaged pins. Where is the P246E sensor located? It is not uncommon to have three or more sensors fitted to the exhaust; one prior to the turbocharger, one before the DPF and the third after the particulate filter. Therefore, we strongly recommend that you consult reliable service/repair information for the affected vehicle to locate and identify the exhaust gas temperature sensor(s) correctly. This is a generic diagnostic trouble code (DTC) and applies to many OBD-II vehicles (1996-newer). Bank 1 refers to the bank of cylinders on V-type engines that contains cylinder #1. To test the sensor, use a separate IR measurement device, and compare the readings to the live data obtained when using a diagnostic tool. Lucas say a common problem with all wired sensors is that wires can break, especially if subjected to harsh twists and turns.
As their name suggests, exhaust gas temperature sensors measure the temperature of the exhaust gas as it passes through the exhaust system. Any help would be appreciated. To help you out, here's a short clip showing what the process might involve. Some diesel vehicles have a diesel particulate filter that burns particles in the exhaust gas, turning them into harmless substances. This type system has an additional sensor measuring exhaust gas temperature as it leaves the EGR cooler. Exposure to excessively high exhaust gas temperatures i. e., temperatures over 1 6000F. Turn the engine on and check if the exhaust system works properly. If the controller doesn't get the right response from the number four sensor on bank one, it will set the generic code P2471. Exhaust gas temperature sensors are incorporated in diesel engines, gasoline burning engines, and even turbocharged engines. Excessive exhaust leak.
Does anybody knows where the sensor is located? Fuel consumption may increase noticeably. Now reconnect the diagnostic tool and delete any related fault codes. I hope is.... P0544That's the description not a code.... A diagnostic and repair process that worked for some vehicles may not apply to other instances of this generic trouble code.
Consult the appropriate repair manual or repair database for the exact code definition. PTC-type sensor failures are often misdiagnosed as DPF issues as after failure they continue to function sending incorrect signals to the ECU affecting the DPF regeneration process. The NTC element has a high resistance at low temperatures and a low resistance at high temperatures. Corroded or damaged connector. Make sure you're working on the right sensor before checking or changing parts.