4 Dirty Little Tips About Audi G28 Industry Audi G28 Industry

How to Replace an Replacement Audi Key Cost Uk G28 Engine Speed Sensor

Charles the Humble Technician teaches you how to replace the G28 Engine Speed Sensor. The sensor is located on the edge of the transmission above the flywheel ring gear. It sends a message to the ECU via an uncolored wire T55/49, then to the tachometer in the instrument cluster.

1. Engine Speed Sensor

The grey wire is situated on the outside of the transmission, above the flywheel ring. The sensor sends signals through the grey wire to pin T55/49. The ECU then utilizes this information to regulate the flow of fuel, timig and boost. It also sends an alert to the G5 Tachometer located in the instrument cluster.

The sensor is used to connect the G40 Camshaft position Sensor. The ecu has to know when the crankshaft has reached TDC, and the position of the camshaft, so that it can activate the spark and injectors.

If this sensor fails to function, the ECU will display a P00160 error message. This means that the Crank Shaft is out of sync with the Intake Camshaft. It could also be a sign of the possibility of a chain stretch or jumpy chain link in the upper chain. The code won't appear without the additional information provided by other sensors (G4 or G40).

Testing can be a bit difficult since there are two connector pins, and they perform different functions but the most effective method of testing it is to measure resistance between the sensor and the ECU. It should read approximately 1000 ohms when it is operating at its maximum. Check for evidence of coolant or oil in the connector bay if you have problems with this part.

2. Injectors

Yesterday accelerating full speed from highway paytoll i had an abrupt drop in power as if the engine was running out of gas or the injectors are not firing at all. This morning i pull out the spark plugs, three were soaked with gazoline and the fourth was dry. When i crank the engine without sparks, i place a tissue on the top of each of the injector holes and the 3 that were drenched in gazoline jump out but the 4th one stays closed. I checked the ground connection of ECU pins 14,30, and 48/55. I got zero ohm. I think the issue is elsewhere.

I also tried to reset the PID but with no luck. The car will start if the G28 is not plugged in and is running fine when it is plugged in, but still has intermittent misfire issues at higher RPM. The coolant temperature sensor (G62) shows the wrong temp value -49c, even if I unplug it. Also i noticed that the oil pressure gauge in the cockpit shows 2 bar, whereas the actual pressure is 0.0 when I crank up the engine.

I'm not certain what to do, as i think i've pretty much ruled out everything else. But i'm worried that i might have missed something. Let me know If you have any suggestions! TIA!

3. Fuel Pump

The fuel pump of the g28 receives signals from the RPM sensor. The GM-style transmitter is identical to the G4 sender and both work on the 80,100,200, UrS, Audi Car Key Replacement Cost and RS2 vehicles. You can easily locate an extra in a wrecking shop or a parts store. Test them out - put your DMM in resistance mode and take measurements between pins 1 (with the bump on the connector end up) and 2 (2nd from the left on the black connector's end). They must be infinite Ohms.

4. ECU

The ECU in our 20vt turbo (3B AAN ABY ADU) engines needs to know both the position and speed the crankshaft in order to make a decision about timing of fuel injectors, etc. It utilizes a Crank Position Sensor G4 and an Engine Speed Sensor G28 to achieve this. If you have a problem with either one of these, the diagnostic scanner will show codes that could lead to an engine shut down.

A damaged G28 sensor can cause an inaccurate speed counter for your gearbox and a gearbox which shifts faster than normal, and/or a misfire in gear. If you are experiencing any of these problems, it is most likely that your sensor is going bad and needs replacing. They're inexpensive and easy to locate especially in the case of a Bosch model like ours. Alternatively, the GM version of this part is also a great option.

5. Tachometer

A malfunctioning engine sensor can cause a number of problems in your vehicle. It is a crucial part of your audi replacement key service near me's transmission, because it communicates to the ECU about how fast or slow the vehicle's crankshaft is turning. This sensor could cause the transmission to malfunction and other components of the car to be affected.

The G5 engine sensor is located near the edge of the transmission, over the flywheel ring. It sends an electrical signal through an uncolored wire to the ECU pin T55/49. The ECU then processes this signal to regulate the flow of fuel, timig and boost and then sends it on to the G5 tachometer inside the instrument cluster. You can check for sensor failure by examining the continuity from the sensor to the tachometer. You can also 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 as well as pin T26a/12. It should show around 1000 ohms of resistance between those points. This is a common feature across the audi key shell 80-100-200-RS2 range, from the 1985 MC all the way up to the 1997 UrS AN and Audi Tt Key Fob Not Working 1995 RS2 Du, so you might find some good ones in wrecking yards.