We have a 721d case loader. It is a 2003 model, it has had engine missing problems for quite awhile. We can get blink codes for electrical problems with all injectors. All injectors have been replaced and now it is worse off than before. Will run ok then start missing and eventually die. Ecu has been swapped with sister machine and still same problem. Countless fuel filters changed. I suspect the fuel pressure sensor on the rail or there is another one on the fuel pump that might be bad. Have had a dealer look at it but they said their computer would not connect so they were not much help. First time here and I am going to try to take a picture of the tag on the motor hope it makes it to the post. Any help would be appreciated because we are not very framilar with common rail fuel injection. Thanks again.
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