One problem related to fuel injection has been reported for the 1998 Dodge RAM. The most recently reported issues are listed below.
Since the 1st pump failed I have seriously diminished power and mileage. After Chrysler got involved. . . They kept throwing parts at it but handed me a lot of stories. Would not send to cummins. Cummins agreed to diagnose the problem after several months of run around with Chrysler. Still not resolved.