Njojo parents were both catechists trained by Canon Apolo Kivebulaya.
He worked as a dactylographer at the office of the legal representative of the Anglican Church of Boga, New Zealander missionary Charles Rendle.
He continued his studies at Aungba, where he finished secondary school, earning his State diploma.
He had to move from Boga to Djugu because of that, being consecrated as an evangelist by missionary Philip Ridsdale, who offered him a Bible for that purpose.
Missionary bishop Philip Ridsdale obtained him a scholarship that allowed Njojo to pursue his studies in Canada.
In 1992, he was elected the first Primate and Archbishop of the Province of the Anglican Church of Zaire, upon his creation.