- Nov 12, 2006
- 5,334
- Boat Info
- 1999 Sea Ray 330DA
Twin 7.4 MPI (310 propshaft HP) V-drives
- Engines
- Twin Mercury Marine marinized 7.4L L-29 V8s
Cast iron block w 4-bolt mains
I have never seen EGR on a marine engine, and my manuals don't mention EGR systems. Unless Merc made them just for export, that's probably not your problem. I think you'll find the injectors defective.