1999 Mercruiser HI-Performance GM 377 EFI Engine Service Manual, Page 344Get this manual

1999 Mercruiser HI-Performance GM 377 EFI Engine Service Manual, Page 344

Quality of the image is intentionally reduced!

DIAGNOSTICS

Not Usable Not Usable 5V

Not Usable Not Usable 5V

Rough Unstable or Incorrect Idle Rough Unstable or Incorrect Idle Poor Fuel Economy, Poor Performan