Originally Posted by Diesel911

Are you using only Diesel Fuel?

I have seen Injector Spray Nozzles that the Pintel inside of the Spray Nozzle would hang up due to haveing had water that rusted them or dirt passing through them.
Sometimes the problem Injectors will stick when you Pop Test them but not always.
When you take them apart you can see score marks on the side of the Pintel.
Were I worked we had an Electric Motor with a small Drill Chuck on it; we would put the Pintel in the Chuck; put some extremely fine lapping compound on some Toilet paper; spin the pintle and polish up the sides.
After the Injector was assembled it would be retested.

But, you would think that if an Injector was having a problem it would also have the same problem when the Engine is still cold.

There is some threads from Members who have done a Purge to clean out from the Fuel Supply Pump to the Injectors.