I certainly wouldn't try starting a fuel injected car with any throttle input. Just leaving the ignition in the "on" position fow a few seconds should be enough to prime the system.
I saw my old boss try and start a VN commodore while pumping the accelerator as if it was an old carby motor.
She went boom and blew the trottle body apart, set fire to the air box, and burnt the engine bay and some of the wireing harness.
All that on a customers car and about 10 seconds after me warning him not to do it and him yelling at me because "i know what i'm doing"
2013 Ford Focus ST - Performance Blue, Cobb AP
Gone 2006 3 MPS Sports - True Red, Koni FSD shocks, in dash OEM look Ebay GPS/DVD, Hypertech, RX8 Rims