Engine protection mode Gi, GSi In a low oil pressure or engine overheat situation, the EFI system enters an Engine Protection Mode. In these situations, normal engine operation is limited to 2500 to 2700 RPM or less. Above 2500 to 2700 RPM the engine will exhibit poor running characteristics. Use the oil pressure and water temperature gauges to verify a problem exists, then check the engine crankcase for proper oil level and the water inlets for obstructions. The low oil pressure/engine overheat problem must be corrected before the engine will return to normal operation. To reset the Engine Protection Mode after the problem is corrected, allow the engine to cool and then continue with normal operation.
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NOTE: Should the problem continue, contact your nearest Volvo Penta dealer and have the engine checked.
Master/slave installation Gi, GSi For twin unit installations both engine EMCs can be tied together electronically. One engine will then be the “master“ engine and the other will be the “slave“ engine. The starboard engine or the engine with the power steering pump is always connected as the “master“ engine. If one engine has a fault that causes it to go into Engine Protection Mode (low oil pressure or engine overheat) the other engine will also go into Engine Protection Mode.
High altitude operation Engines with carburetors only A performance loss at altitudes above 1600 m (5000 ft.) can be expected. If you are boating above 1600 m altitude for a short time, a lower pitch propeller will restore some of the lost performance. Long term use above altitudes of 1600 m may require carburetter adjustment.
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