Seat Toledo does not start

Hello everyone, I have a problem with an AFN engine of 98, it does not start the Cut

Look to see that the diesel pipe does not have air (the transparent one that comes out of the filter) if you have air you will have to purge if you have not already done it. Greetings

Then also, that the warming spark plugs work

If you do not get tension to the spark plugs, look at the Refigigrant Temperature Sensor (command this function), if this is right, check the CKP, because of being bad, the injectors will not have a pulse into the coils and do not inject, if you eth this, you can have an earlier air intake or a problem in the transfer pump ...