I just wondered if anyone else has wired up the AGU for a standalone. Just a little project for something to do.
I've got a J220 T80 connector on its way from the states which I plan to make a plug and play with EMS-Pro. As far as I can tell the only hardware change needed is a 2 wire bosch Idle valve as the stock one uses a stepper motor in the throttle body and this isn't supported by the simple EMS-Pro. I was going to use microsquirt but the inbuilt MAP sensor and boost control on the EMS-Pro swung it.
Ultimately going to swap the ECU over to an AEB powered A4 TQS, uses the same connector but will need a few wires re-pinning.
For those that have done this how far off am I, I'm sure I'm missing a few grounds.
Relevant AGU ECU pins I think I've identified.
I've got a J220 T80 connector on its way from the states which I plan to make a plug and play with EMS-Pro. As far as I can tell the only hardware change needed is a 2 wire bosch Idle valve as the stock one uses a stepper motor in the throttle body and this isn't supported by the simple EMS-Pro. I was going to use microsquirt but the inbuilt MAP sensor and boost control on the EMS-Pro swung it.
Ultimately going to swap the ECU over to an AEB powered A4 TQS, uses the same connector but will need a few wires re-pinning.
For those that have done this how far off am I, I'm sure I'm missing a few grounds.
Relevant AGU ECU pins I think I've identified.
| AGU pin | Desciption | Required | |
| 1 | F v12 | 12v switched | |
| 2 | Ground | Engine harness | |
| 3 | 12v DC | ||
| 4 | Fuel Pump | ||
| 5 | Ground | ||
| 6 | RPM | Tacho output | |
| 7 | Ground | ||
| 9 | Ground | ||
| 20 | VSS | ||
| 25 | O2 | signal | |
| 26 | O2 | Ground | |
| 27 | O2 heater | ||
| 53 | Coolant | ||
| 54 | IAT | ||
| 62 | TPS signal | ||
| 64 | Boost/N75 | ||
| 67 | Ground | 220 engine harness - sensor ground inc TPS | |
| 69 | F-idle | use 2 wire valve, stepper motor not supported | |
| 70 | Ign-B | Cylinder 2 | 750 ohm resistor |
| 71 | Ign-D | Cylinder 4 | 750 ohm resistor |
| 75 | TPS vref | 5v TPS | |
| 76 | Crank Position Sensor | Hall sender | 1/4 watt 10k resistor |
| 77 | Ign-A | Cylinder 1 | 750 ohm resistor |
| 78 | Ign-C | Cylinder 3 | 750 ohm resistor |
| 68/60 | Knock | ||
| 73/65 | Inj-1 | cylinder 1/4 | |
| 80/58 | Inj-2 | cylinder 2/3 |
