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How to Replace an [https://fagan-hermann-3.blogbright.net/15-secretly-funny-people-work-in-audi-key-1720268814/ audi replacement key fob] G28 Engine Speed Sensor<br><br>Charles the Humble Technician shows how to replace the G28 Engine Speed Sensor. This sensor is located on the edge of the transmission, above the flywheel ring gear. It sends a message to the ECU through a grey wire T55/49, then to the tachometer on the instrument cluster.<br><br>1. Engine Speed Sensor<br><br>The grey wire is situated on the edge of transmission, just above the flywheel ring. This sensor sends an electrical signal through the grey wire to pin T55/49. The ECU uses this information to regulate fuel and boost. It also sends an indication to the G5 Tachometer in instrument cluster.<br><br>The sensor serves as a reference to correlate with the G40 Camshaft Position Sensor. The ecu must know when the crankshaft is TDC and the location of the camshaft so it can activate spark and injectors according to the situation.<br><br>If this sensor fails, the ECU will display an error code P00160. This indicates that the Crank Shaft is not in sync with the Intake Camshaft. It could also indicate the possibility of a chain stretch or jumpy chain link in the upper timing chain. The code won't show without the additional information supplied by other sensors (G4 or G40).<br><br>Testing is a bit challenging since there are two pins for the connector and they serve different purposes but the most effective way to test it is by measuring resistance between the sensor and the ECU. If the sensor is operational, it should be reading about 1000 ohms. If you're experiencing issues with this component, look for signs of oil or coolant in the connector bay.<br><br>2. Injectors<br><br>Yesterday, while accelerating from the highway paytoll at full speed, i noticed a huge decrease in power. It was as if the engine was running out of gas. Or, my injectors weren't firing. In the morning, i removed the spark plugs, 3 were drenched with gazoline the fourth was dry. When I crank the engine, there are no sparks, I put a piece of tissue on the top of each of the injector holes and the 3 drenched with gazoline jump out but the 4th stay shut. I tried to test the ground connections of ECU pins 14,30, and 48/55. I found 0ohm. So i assume the problem is elsewhere.<br><br>I also tried to reset the PID with no success. The car is able to start when the G28 is disconnected and it runs perfectly when it is plugged in but it still is experiencing intermittent misfires at higher RPM. The coolant temperature sensor (G62) shows the wrong temp value -49c even when i unplug it. I also noticed that the oil gauge in the cockpit shows 2 bars but the actual pressure is 0.<br><br>I don't know what to do. I think I've all other possibilities out. I'm concerned that i may have missed something. If anyone has any ideas please share them! TIA!<br><br>3. Fuel Pump<br><br>The fuel pump of the g28 receives a signal from the RPM sensor. The GM-style transmitter is identical to the G4 and both are used in the 80 100, 200, UrS and  [https://minecraftcommand.science/profile/banglesyrup2 programmers] RS2 cars so you can easily find one at a wrecking yard or at a parts store. It is simple to test them: simply put your DMM into resistance mode and measure the distance between pins 1 and  audi tt key Fob ([https://roche-gram.technetbloggers.de/the-best-replacement-car-key-audi-is-gurus-3-things/ mouse click the next web site]) 2 (with the bump at the connector's end facing upwards). They must be infinite ohms.<br><br>4. ECU<br><br>The ECU in our 20vt turbo (3B AAN ABY) engines needs to know both the position and speed of the crankshaft to determine fuel injector timing, etc. It utilizes a Crank Position Sensor G4 and an Engine Speed Sensor G28 to accomplish this. If you encounter a problem with either of these sensors, the diagnostic scanner will show codes that could lead to an engine shut down.<br><br>A malfunctioning G28 sensor could cause an inaccurate speed counter for the gearbox, a gearbox that shifts faster than normal, and/or an unfire when in the gear. It is probable that your sensor is failing and requires to be replaced if you notice any of these signs. They're cheap and easy to find especially when they're a Bosch sensor like ours. You can also choose the GM version of this part is also a good option.<br><br>5. Tachometer<br><br>A malfunctioning engine speed sensor could be the cause of many problems in your vehicle. It's a vital component of the [https://bracecrowd06.werite.net/do-you-think-youre-suited-for-doing-audi-q7-car-key-replacement audi key replacement cost uk]'s transmission as it sends information to the ECU about how the car's crankshaft is rotating. This sensor could cause the transmission to fail and other components of the car to be affected.<br><br>The G5 engine speed sensor is located on the outside of the transmission just above the flywheel ring gear. It transmits a signal to the ECU at pin T55/49, via an uncolored wire. The ECU then uses and processes this signal to regulate the flow of fuel, timig and boost and then sends it on to the G5 Tachometer located in the instrument cluster. You can check for sensor failure by examining the continuity of the sensor to the tachometer. You can also 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. You should see approximately 1000 ohms resistance between these two points. This is the same across the [https://molchanovonews.ru:443/user/vestwish0/ audi spare key replacement] 80-100-200-RS2 range, from the 1985 MC up to the 1997 UrS An and 1995 RS2 Du So, you may find them in wrecking yards.