Marine Diagnostics

Mobile Marine Diagnostics, Marine Surveying, Troubleshooting, Repairs, and Electrical                 David Gunderson, SA

4300 South U.S. Highway 1, Suite 203-152 • Jupiter, Florida 33477                                         561-843-3844



Marine Engine Diagnostics

Marine engine diagnostics is the analysis of the engine's computer system. This analysis is conducted by plugging a special processor into the engine's computer. The processor communicates with a portable laptop computer translating information from the engine's computer. This lets the marine technician know information about the engine which can include: The engine's model number, the engine's serial number, actual engine hours, the engine's RPM history, the engine's running profile, current and stored fault codes, and a data parameter summary. Engine diagnostics can help the technician, boat owner or prospective buyer know and understand the overall condition of the engine. Computerized marine engine diagnostics can save hours of labor time and money on trouble shooting the engine. 

Marine engine diagnostics is a very quick and easy diagnostics to conduct. From the engine diagnostic computer the report is generated based on data read from the engine's computer and can be sent from the diagnostics computer to your email via a PDF file. The entire process takes only minutes to complete.  

Marine engine diagnostics is a very quick and easy diagnostic analysis and test to conduct. Currently the engines that I can perform computerized diagnostics on are:

  • Yamaha four stroke outboard engines
  • Honda four stroke outboard engines
  • Suzuki four stroke outboard engines
  • Mercury / Mariner four stroke outboard engines
  • Johnson and Evinrude four stroke FICHT and E-TEC engines
  • MerCruiser four stroke inboard gasoline engines
  • Yamaha personal watercraft


For a complete listing of manufacturers, years, and engine models I can perform computerized engine diagnostics on click here.

To see an example of a marine diagnostics report on a Mercury Verado outboard engine click here

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