Main Pump Fuel Volume Check
WARNING: This page is about a different car, the 1995 Audi Cabriolet. However, it is still accessible from the selected car via links, so may be relevant.
- Remove fuel pump relay from relay panel. Attach a hose to fuel pump outlet connector and place other end of hose in a graduated container.
- Using a DVOM between fuel pump connector terminals No. 1 (Green/Yellow wire) and No. 4 (Brown wire), measure voltage being applied to fuel pump when activating with Remote Control (VAG 1348/3A). Activate fuel pump for 30 seconds. Record voltage.
- Fuel pump volume is relative to voltage applied to fuel pump. Compare volume with values in FUEL PUMP PERFORMANCE table. If volume is not as specified, replace fuel pump.
FUEL PUMP PERFORMANCE
| Voltage Applied | Min. Vol. In 30 Sec. Pts (L) |
|---|---|
| 10 | 1.0 (.46) |
| 11 | 1.3 (.62) |
| 12 | 1.6 (.75) |