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How to Replace an [https://fakenews.win/wiki/The_Reasons_Replacement_Audi_Car_Key_Is_Everyones_Obsession_In_2023 replacement audi key cost] G28 Engine Speed Sensor<br><br>In this video, Charles the Humble Mechanic shows how to replace the G28 engine speed sensor. The sensor is located near the edges of the transmission just above the flywheel ring gear. It transmits a signal the ECU via a grey wire (T55/49), then to the tachometer in the instrument cluster.<br><br>1. Engine Speed Sensor<br><br>It is located on the outside of the transmission just above the flywheel ring gear the G28 Engine Speed Sensor sends signals to ECU pin T55/49 through the grey wire. The ECU then utilizes this information to regulate the boost, fuel, and timig. It also sends an indication to the G5 Tachometer within the instrument cluster.<br><br>The sensor serves as a reference point to connect with the G40 Camshaft Position Sensor. The ecu must know when the crankshaft reached TDC and also the position of the camshaft, in order to activate the spark and injectors.<br><br>If this sensor fails, the ECU will display a P00160 code 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. However, the code won't be displayed on its own without additional information from other sensors (G4 and G40).<br><br>Testing is a bit tricky because there are two connector pins and they serve different purposes however the best way to test it is to measure the resistance between the sensor and the ECU. When the sensor is fully functional, it should read approximately 1000 ohms. Look for signs of coolant or oil in the connector bay if there are issues with this part.<br><br>2. Injectors<br><br>Yesterday, when i was accelerating to the fullest speed from highway paytoll i had a big cut in power like the engine is out of gas or injectors aren't firing at all. I pulled out the spark plugs this morning, three were soaked in gasoline, and  [https://storyplus.ru/user/cheeseplanet90/ audi replacement key cost] the fourth was unclean. I put a piece of tissue over each hole in the injector and when I start the engine without sparks, the ones with gazoline jump right out. The 4th one stays shut. I checked the ground connection on ECU pins 14/55/30/55/48/55/14/55/48/ i get zero Ohm. I'm assuming that the issue is somewhere else.<br><br>I also tried to reset the PID without success. The car will start when the G28 is unplugged, and it is running fine with the G28 plugged in. However the intermittent misfire issue persists at higher RPM. The temperature sensor for coolant (G62) shows the wrong temp value that is -49c even after unplugging it. I also noticed that the oil gauge in the cockpit shows 2 bars when the actual pressure is 0.<br><br>I don't know what to do. I think I've ruled everything else out. But i'm worried that i might have missed something. Let me know If you have any suggestions! TIA!<br><br>3. Fuel Pump<br><br>The fuel pump in the g28 receives a signal from the RPM sensor. The GM-style sender is the same as the G4 and they both work in the 80 100 200, UrS and RS2 cars which is why you can easily locate one at a salvage yard or at a parts store. It is simple to test them - just put your DMM into resistance mode and determine the distance between pins 1 and 2 (with the bump at the connector end facing up). They must be infinite Ohms.<br><br>4. ECU<br><br>The ECU of our 20vt turbo (3B AAN ABY) engines must know the position and speed the crankshaft to make decisions regarding fuel injector timing, etc. It makes use of a Crank Position Sensor G4 and an Engine Speed Sensor G28 to accomplish this. If you have a problem with either of these, the diagnostic scanner will show the codes that could trigger an engine shutdown.<br><br>Some of the signs of a failing G28 sensor include an inaccurate rev counter for the gearbox, gears shifting quicker than normal and/or a misfire when in gear. If you have any of these issues it is likely your sensor is failing and should be replaced. The good news is that they are quite affordable and readily available particularly if you're looking at the Bosch sensor, which is what we have. Alternately, the GM version of this unit is also a great option.<br><br>5. Tachometer<br><br>A malfunctioning engine sensor can cause a number of problems in your vehicle. It's a vital component of the [http://topspeed.lv/user/denrhythm67/ audi car keys]'s transmission as it sends information to the ECU about how fast or slow the car's crankshaft is turning. This sensor could cause the transmission to fail and other components in the car to be affected.<br><br>The G5 engine speed sensor is situated on the outside of the transmission just above the flywheel ring gear. It sends a signal to the ECU at pin T55/49 via an uncolored wire. The ECU then uses and processes this signal to regulate fuel, timig and boost and then sends it on to the G5 tachometer inside the instrument cluster. You can check for sensor failure by checking continuity from the sensor to the tachometer. Also, you can examine the continuity between pins 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 a resistance of approximately 1000 ohms in these areas. This is a common feature across the [https://yanyiku.cn/home.php?mod=space&uid=4510198 audi car key cover] Tt key Programming ([http://wzgroupup.hkhz76.badudns.cc/home.php?mod=space&uid=1846754 wzgroupup.hkhz76.badudns.cc]) 80-100-200-RS2 series, starting from the 1985 MC up to the 1997 UrS AN and the 1995 RS2 Du You may also find them in wrecking yards.