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How to Replace an [https://atomcraft.ru/user/lungpipe13/ audi replacement car keys] G28 Engine Speed Sensor<br><br>In this video, Charles the humble mechanic demonstrates how to replace the G28 engine speed sensor. This sensor is located near the transmission's edge, above the flywheel gear. It sends a message to the ECU via a grey wire T55/49, then to the tachometer on 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 a signal to ECU pin T55/49 using a grey wire. The ECU then uses this information to control fuel, timig and boost. It also sends signals to the G5 Tachometer located in the instrument cluster.<br><br>The sensor is used to connect the G40 Camshaft position Sensor. The ecu has to be aware of when the crankshaft has reached TDC and also where the camshaft lies in order to activate the spark and injectors.<br><br>If this sensor fails, the ECU will throw an error code P00160 which indicates that 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 will not appear on its own without additional information from other sensors (G4 and G40).<br><br>It is a little tricky to test since there are several connector pins, and each one has different functions. The most effective method to test it is to measure the resistance between the ECU and the sensor. If the sensor is operational, it should be reading around 1000 ohms. Examine [https://tupalo.com/en/users/7552830 replacement key for audi a4] signs of coolant or oil in the connector bay if you are experiencing issues with this part.<br><br>2. Injectors<br><br>Yesterday, when i was accelerating to the fullest speed from highway paytoll, I experienced a big cut in power like the engine is running out of gas or injectors aren't firing any more. I pulled out the spark plugs this morning and found that 3 were soaked in gasoline, and the 4th was dry. When i crank the engine without sparks, I put a piece of tissue on the top of each of the injector holes and the 3 that were drenched in gazoline pop out, but the 4th one stays closed. I tested the ground connection on ECU pins 14/55/30/55/48/55/14/55/48/ I get zero ohm. I assume that the problem is somewhere else.<br><br>I also tried to reset PID without success. The car will start if the G28 is unplugged and it runs perfectly when it is connected however it has the intermittent misfire issue at higher RPM. The coolant sensor (G62) even when unplugged, still shows a temperature of -49c. I also noticed that the oil pressure gauge in the cockpit shows 2 bar, whereas the actual pressure is 0.0 when i rev the engine.<br><br>I'm not sure what to do, i think i've pretty much eliminated everything else. However, i'm afraid that I might have missed something. If anyone has any suggestions, please chime in! TIA!<br><br>3. Fuel Pump<br><br>The fuel pump of the g28 receives signals from the RPM sensor. The GM-style sender is identical to the G4 and both are used in the 80 100 200, UrS and RS2 cars which is why you can easily locate one at a wrecking yard or in a local parts store. Testing them is easy - put your DMM in resistance mode and measure the resistance between pins 1 (with the bump on the connector's side up) and 2 (2nd from left on the black connector's end). They should be infinite Ohms.<br><br>4. ECU<br><br>Our 20vt turbo (3B AAN, ABY, and ADU) engines have an ECU that must know the speed and position of the crankshaft in order to make decisions about fuel injector timing etc. To accomplish this, it makes use of a Crank Position Sensor (G4) and an Engine Speed Sensor  [https://maps.google.com.ar/url?q=https://telegra.ph/Buzzwords-De-Buzzed-10-Other-Ways-To-Say-Audi-Key-09-27 replacement audi a3 key] (G28). If you are experiencing issues with either one of these, the diagnostic scanner will show codes that could cause the engine shutting down.<br><br>The signs of a malfunctioning G28 sensor include an inaccurate rev counter in the gearbox and gears that shift faster than normal and/or a misfire when you are in gear. It is likely that your sensor is failing and needs to be replaced if you encounter any of these signs. The good thing is that they are very affordable and easy to find, especially if you're looking at an Bosch sensor, which is what we have. You can also choose the GM version of this part is also a good option.<br><br>5. Tachometer<br><br>A faulty engine speed sensor could be the cause of a slew of issues with your car. It's an essential component of the [https://minecraftcommand.science/profile/condorjohn82 Replacement audi Key Cost uk]'s transmission because it communicates to the ECU about how the car's crankshaft is rotating. This sensor can cause the transmission to fail and other components of the car to be affected.<br><br>The G5 engine speed sensor is situated on the edge of the transmission above the flywheel ring gear and transmits a signal to the ECU at pin T55/49 via a grey wire. The ECU uses this signal to regulate the flow of fuel and boost and also timig. It also transmits it to the G5 Tachometer inside the instrument cluster. You can determine if the sensor is in failure by checking continuity from the sensor to the tachometer. Additionally, you can examine the continuity between pins T55/49 of the ECU and pin T6a/1 of the instrument cluster (trace [79trace [79]), and between pin T6a/1 and pin T26a/12. There should be the resistance to be around 1000 ohms in these areas. This is a typical component across the [http://wzgroupup.hkhz76.badudns.cc/home.php?mod=space&uid=1781303 Audi A1 keys] 80, 100, 200, UrS and RS2 range from 1985 MC through the 1997 UrS AAN and 1995 RS2 ADU. Good ones could be available in wrecking yards.