moneymaraca74
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https://kejser-bender-3.blogbright.net/17-reasons-not-to-not-ignore-audi-replacement-key
How to Replace an Audi G28 Engine Speed Sensor Charles the Humble Technician shows how to replace the G28 Engine Speed Sensor This sensor is located near the edges of the transmission above the flywheel ring gear It transmits a signal to the ECU via a grey wire T5549 and then to the tachometer within the instrument cluster 1 Engine Speed Sensor The grey wire is situated on the outside of the transmission above the flywheel ring The sensor transmits an electrical signal through the grey wire to pin T5549 The ECU utilizes this information to control the amount of fuel and boost It also sends signals to the G5 tachometer in the instrument cluster The sensor serves as a reference point to connect with the G40 Camshaft Position Sensor The ecu needs to know when the crankshaft is TDC and where the camshaft is so it can activate spark and injectors in the right way If this sensor fails when it fails the ECU will display a P00160 error code audi tt keys indicates that the Crank Shaft is not in line with the Intake Camshaft It could also indicate the possibility of a chain stretch or jumpy chain link in the upper chain The code wont appear without the additional information provided by other sensors G4 or G40 Testing is a bit challenging because there are two connector pins and they serve different purposes but the most effective way to test it is to measure resistance between the sensor and the ECU It should read around 1000 ohms when the sensor is operating at its maximum If you are having problems with this part check for evidence of oil or coolant in the connector bay 2 Injectors Yesterday while accelerating at full speed from the highway paytoll i had a big cut in power like the engine is out of gas or the injectors are not firing anymore I took out the spark plugs this morning and found that 3 were soaked in gasoline and the fourth was unclean I placed a tissue over each injector hole and when I turn the engine on without sparks the ones with gazoline jump right out The fourth one remains shut I checked the ground connection of ECU pins 1430 and 4855 I got 0ohm I assume that the problem is somewhere else I also tried to reset PID without success The car can start if the G28 is unplugged and runs fine when it is connected but it still has the intermittent misfire issue at higher RPM The temperature sensor for the coolant G62 shows the wrong temperature of 49c even when i unplug it I also noticed that the oil gauge in the cockpit shows 2 bar while the actual pressure is zero Im not sure what to do I believe that Ive eliminated everything else But im worried that I may have missed something If anyone has any ideas please chime in TIA 3 Fuel Pump The fuel pump in the g28 receives a signal from the RPM sensor The GMstyle transmitter is identical to the G4 sender and both work on the 80100200 UrS and RS2 vehicles You can easily find a spare in a wrecking shop or a parts store It is simple to test them just switch your DMM into resistance mode and measure the distance between pins 1 and 2 with the bump at the connectors end facing up They must be infinite Ohms 4 ECU Our 20vt turbo 3B AAN ABY and ADU engines have an ECU that must be aware of the speed and position of the crankshaft in order to make decisions regarding fuel injector timing etc To do this it makes use of a Crank Position Sensor G4 and an Engine Speed Sensor G28 If you encounter a problem with either of these the diagnostic scanner will display codes that could lead to an engine shut down The signs of a failed G28 sensor include an inaccurate rev counter for the gearbox gears shifting quicker than normal andor a misfire when you are in gear It is probable that the sensor is failing and needs to be replaced if you encounter any of these signs Theyre cheap and easy to find especially in the case of an Bosch sensor like ours Alternatively the GM version of this part is also a good option 5 Tachometer A malfunctioning engine sensor can cause a variety of issues in your car Its an essential component of the Audis transmission since it relays information to the ECU about how the cars crankshaft is turning If this sensor fails it could disrupt the performance of the transmission as well as the rest of the cars components The G5 engine sensor is located at the edge of the transmission over the flywheel ring It sends a signal via an uncolored wire to the ECU pin T5549 The ECU then uses and processes this signal to control fuel timig and boost and then transmitting it to the G5 Tachometer located in the instrument cluster You can check the sensor for any failure by checking the continuity between it and the tachometer between ECU pin T5549 and the instrument cluster connection to pin T6a1 trace 79trace 79 and between pin T6a1 and the instrument cluster pin T26a12 There should be an average resistance of 1000 ohms between these points This is a typical part that is found across the Audi 80 100 200 UrS and RS2 range from 1985 MC to the 1997 UrS AAN and 1995 RS2 ADU so good ones might be availble in wrecking yards
