My '84 DL started running funny, (rough when cold, stumbling on acceleration until thoroughly warm, etc.) and while poking around I found that the electrical connectors to my injectors were badly corroded. Also it seemed that it was too easy to turn them (although never having touched the injectors before I can't say how easy is too easy).

The question I put before the congregation is this: should I clean up the connections with some kind of cleaner and replace the o-rings or should I just replace the injectors completely?