Might my problem be caused by the same issues?
My problem:
Had a problem last fall in my motorhome on parkway at 65mph. After few miles, engine started cutting out. When I let off accelerator engine would run okay until next demand like climbing or any heavy acceleration. Got worse and worse over the next 200+ miles until barely maintaining 55 on flat. (Injection believed to have been upgraded to HPCR in 2006.)
Shop installed Cummins remanufactured fuel pump on my ISC-8? (R460-AA2-001 SERIAL 45772889). Problem seemed resolved but didn’t put more than 25 miles on coach (running fine). Unit sat for 3 months in storage in cold, one day subzero. Would not start. Waited ‘til spring for warmer day. Mobile technician found no flow to fuel pump - replaced both fuel filters and got good flow but was airbound. Purged air and engine would run fine at 1500 rpm about 4-5 mins then shut off like key turned off. This keeps repeating – purge air, engine runs fine few mins then shuts down.
Any help appreciated.