Have you got a local RS next to you? Youll get the 330ohm 10w resisitors there for pennies.
Everytime ive done a SAI delete i havnt bothered putting the resistor in place of the pump. The pump simply gets a switched power supply from the battery through the relay in the black box in the rear rhs of your engine bay. The N112 underneath the inlet will need the resisitor though. All the resistor is trying to do is mimic the resistance of the internal coil of the device it replaces. The only reason you need it to have a good Wattage rating is so that it doesnt get hot when powered.
For my current S3 ive deleted the SAI pump and pulled all the wiring out of the loom, including the relay in the black box. Ive actually deleted the black box and relocated the ECU power relay in there, to inside loom conduit next to it, so that ive got a nice space for a catch can. Then i replaced the SAI relay with a 330ohm 10 watt resistor. That keeps the ECU happy.
