replaced glow plugs and glow plug controler, now CEL p0670

[e70x5d]

Ok so replaced all 6 GP as i was having a CEL P0676 for #6 GP, After reading around consensus was to replace all 6 gp as well as GP controller, so i did so. bought bosch glow plugs on ebay as they were cheaper, and a new Beru GSE108 unit from fcp ( should of bought everything from fcp i know).... My old controller was fine never thru a code and was a beru/bmw controller. When i unlock the car and hit the start button i see preheating on the screen... then after i drive shortly after CEL? so not sure what the issue is here . Did i receive a bad controller? If it was a GP issue i would have codes for that correct? debating throwing my old controller on to see what it does, just not looking forward to removing manifold again to test it out while i wait for new unit ...