I've just been combing through Daniel Wallace's excellent review of Ehrman's Misquoting Jesus. One thing that struck me was the question of the evidence for χωρις θεου in Hebrews 2:9. In Wallace's footnote 36 he says:
'Ehrman says the reading “occurs in only two documents of the tenth century” (Misquoting Jesus, 145), by which he means only two Greek documents, 0243 (0121b) and 1739txt. These manuscripts are closely related and probably represent a common archetype. It is also found in 424cvid (thus, apparently a later correction in an eleventh century minuscule) as well as vgms syrpmss Origengr (vr), lat MSSaccording to Origen Theodore Nestorians according to Ps-Oecumenius Theodoret 1/2; lem Ambrose MSSaccording to Jerome Vigilius Fulgentius. Ehrman does note some of the patristic evidence, underscoring an important argument, viz., “Origen tells us that this was the reading of the majority of manuscripts in his own day” (ibid.)'
It is also claimed in Ehrman's Orthodox Corruption (p. 146) and in Metzger's Textual Commentary (2nd edn; p. 594) that Peshitta manuscripts support this reading. I'm wondering why Wallace, Ehrman and Metzger agree that this is the Peshitta's reading. In Barbara Aland and Andreas Juckel, Das Neue Testament in syrischer Überlieferung, II. Die Paulinischen Briefe, Teil 3: 1./2. Thessalonicherbrief, 1./2. Timotheusbrief, Titusbrief, Philemonbrief und Hebräerbrief (Berlin: De Gruyter, 2002, pp. 262-264) there is no record of any Peshitta ms with this reading.
There are, however, readings of Severus of Antioch, Theodore of Mopsuestia and Babai the Great that appear to support 'without God'.