  We demonstrate all-electrical spin generation and subsequent manipulation by
two successive electric field pulses in an n-InGaAs heterostructure in a
time-resolved experiment at zero external magnetic field. The first electric
field pulse along the $[1\bar10]$ crystal axis creates a current induced spin
polarization (CISP) which is oriented in the plane of the sample. The
subsequent electric field pulse along [110] generates a perpendicular magnetic
field pulse leading to a coherent precession of this spin polarization with
2-dimensional electrical control over the final spin orientation. Spin
precession is probed by time-resolved Faraday rotation. We determine the
build-up time of CISP during the first field pulse and extract the spin
dephasing time and internal magnetic field strength during the spin
manipulation pulse.
