Corrado, GTI, Jetta GLI & Passat

Remove fuel pump relay from relay panel. On Corrado and Passat, activate fuel pumps using Remote Control (VAG1348/3A). On GTI and Jetta GLI, activate fuel pumps using Remote Control (US4480/3). On all models, measure voltage being applied to fuel pump when activating with remote control. Record voltage. Fuel volume is relational to voltage applied to fuel pumps. Activate fuel pumps for 30 seconds. Compare volume with values in FUEL PUMP PERFORMANCE table.