Warning alarm whilst driving

[David Salv]

Hi Friends,

We have a 2006 22i and occasionally whilst idling after being driven for a while our warning alarm comes on (the same alarm which sounds when starting the boat).

To stop it, we turn the engine off, then restart it, this seems to work.

It would be really appreciated to hear from anyone that has expereinced this before and to know the possible cause and how to rectify.

Thanks
David S

[chpthril]

What engine and does the boat have the Tige EIDB dual battery system.

[David Salv]

Its the 5.7 litre gen 3 with a dual battery system

[chpthril]

Its the 5.7 litre gen 3 with a dual battery system

My bad, I should have been more specific. Is is a Merc, PCM or Marine Power engine? All used the same 5.7L. If its the Marine Power with the Tige EIDB Dual Battery system (as opposed to just 2 batts on a multi-batt switch), then I would look at the state of the batteries first.

Is the engine dropping into limp mode, where the RPMs drop to idle and the throttle control is lost? If no other symptom but the alarm, it could be the oil pressure sender that controls the alarm.

[David Salv]

Sorry, i should have been more specific, it is the Marine Power Engine, so i will start with the batteries as you suggest. Thanks for the tip. Its getting warmer down here, so i want to ensure that everything is in good shape ready for a full on summer.