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How to [https://justpin.date/story.php?title=ten-things-you-learned-in-kindergarden-that-will-help-you-with-audi-key-replacement replace audi key fob] an [https://hikvisiondb.webcam/wiki/Thyssenballe3875 audi key replacement cost uk] G28 Engine Speed Sensor<br><br>In this video, Charles the humble mechanic demonstrates how to replace the G28 engine speed sensor. The sensor is situated near the edges of the transmission above the flywheel ring gear. It sends a signal to the ECU via a grey wire (T55/49) and then to the tachometer within the instrument cluster.<br><br>1. Engine Speed Sensor<br><br>The sensor is located at the edge of the transmission, above the flywheel ring gear, the G28 Engine Speed Sensor sends an electrical signal to ECU pin T55/49 via a grey wire. The ECU then utilizes this information to regulate the boost, fuel, and timig. It also sends an indicator to the G5 Tachometer in instrument cluster.<br><br>The sensor is used to connect the G40 Camshaft position Sensor. The ecu must be aware when the crankshaft is TDC and where the camshaft is so it can start spark and injectors accordingly.<br><br>If this sensor fails, the ECU will display the P00160 error, which means the Crank Shaft and Intake Camshaft are out of sync, possibly indicating chain stretch or a jumped link on the upper chain of timing. The code won't show without the additional information provided by other sensors (G4 or G40).<br><br>It can be a bit difficult to test because there are several pins on the connector and each has its own functions. The best way to do it is to measure the resistance between the ECU and the sensor. It should read around 1000 ohms if the sensor is in full operation. Check for signs of coolant or oil in the connector bay if you have issues with this part.<br><br>2. Injectors<br><br>Yesterday, when accelerating from highway paytoll at full speed, i noticed a huge reduction in power. It was like the engine was running out of gas. Or my injectors weren't firing. I took out the spark plugs this morning, 3 were soaked in gasoline, and the fourth was dry. I placed a tissue over each hole in the injector and when i turn the engine on without sparks, the three that have gazoline pop right out. The fourth one remains closed. I tried to test the ground connections of ECU pins 14,30 and 48/55. I found 0ohm. I'm assuming the issue is in another place.<br><br>I also tried to reset the PID but without success. The car can start if the G28 is unplugged and it runs perfectly when it is plugged in but it still has intermittent misfire issues at higher RPM. The coolant temperature sensor (G62) shows the wrong temp value -49c, even if I unplug it. I also noticed that the oil gauge in the cockpit shows 2 bars while the actual pressure is 0.<br><br>I don't know what to do. I believe that I've all other possibilities out. I'm worried that i might have missed something. Please let me know If you have any suggestions! TIA!<br><br>3. Fuel Pump<br><br>The fuel pump in the g28 can be activated by a signal sent by the RPM sensor. The GM-style transmitter is similar to the G4 sender and works on the 80,100,200, UrS, and RS2 vehicles. It is easy to find the spare in a salvage shop or a parts store. It is easy to test them - simply switch your DMM into resistance mode and determine the distance between pins 1 and 2 (with the bump on the connector's edge facing up). They should be infinite Ohms.<br><br>4. ECU<br><br>Our 20vt turbo (3B AAN, ABY, and ADU) engines are equipped with an ECU that must be aware of the speed and position of the crankshaft in order to make a decision about fuel injector timing etc. In order to do this it utilizes a Crank Position Sensor (G4) and an Engine Speed Sensor (G28). If either of these sensors go badly, you will see codes on the diagnostic scanner which can cause the engine to shut down.<br><br>Some of the signs of a failed G28 sensor are an inaccurate rev counter for the gearbox and gears that shift faster than normal and/or a misfire when in gear. It is possible that your sensor is failing and needs to be replaced if you encounter any of these signs. The good news is they are very affordable and easy to find, especially in the case of a Bosch sensor, which is what ours are. You can also choose the GM version of this part is also a great option.<br><br>5. Tachometer<br><br>A malfunctioning engine speed sensor could be the cause of a slew of problems in your vehicle. It's an essential component of the transmission in your [https://lovewiki.faith/wiki/Melgaardbagger6774 audi car key cover], as it transmits information to the ECU on how fast or slowly the car's engine is spinning. If this sensor fails, it could cause problems for the transmission as well as the rest of the car's components.<br><br>The G5 engine sensor is located at the edge of the transmission, just above the flywheel ring. It transmits an electrical signal through an uncolored wire to the ECU pin T55/49. The ECU then uses and processes this signal to control fuel, timig, and boost as well as sends it on to the G5 Tachometer located in the instrument cluster. You can test for sensor failure by checking continuity from the sensor to the tachometer. Also, you can verify continuity between pin T55/49 of the ECU and pin T6a/1 of the instrument cluster (trace [79]), and between pin T6a/1 as well as pin T26a/12. There should be the resistance to be around 1000 ohms in these areas. 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