[snyper]

Hi, so, perhaps I am entering the wrong key words, but I have failed to find what I want help with on the forum.
Astra H, 2005 Z20LER. Keys lost, client purchased a 'new' key, actually two new keys from China with PCF7941 transponder remote key. Accessed pin by OBD, and tried to program new key. Got a failed response, with key problem.
I replaced the transponder with one I know to be unlocked. Still no joy. I had made the mistake of deleting all keys, so I cannot do the keys from eprom.
The question is, what could be wrong? Does this remote key with PCF7941 require to be pre-coded as well?
I also tried pcf7936, same problem.

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update, I managed to get fuel coming through, albeit in very low quantities. Am not familiar with diesel engines, my job was to program the BSI initially.
I checked the timing, and it was out and guessing 5/6 teeth. Is this type of engine a non interference engine? as in, has it got valves that can bend when the timing is wrong?

My only disturbing error code now is glow plug relay active, but glow plugs not activated.