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Dominick
Dominick, Marine Mechanic
Category: Boat
Satisfied Customers: 1009
Experience:  25 Years Experience as Mechanic, 20 Yrs Boat Yard Owner/Mechanic, Factory Certified
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2000 225 optimax check engine light comes on at around 1200

Customer Question

2000 225 optimax check engine light comes on at around 1200 RPMs I changed plugs seems to idle and start better and have new battery. compression check is ok also. this started with a rough idle and got worse till it would not plane off
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Submitted: 6 months ago.
Category: Boat
Expert:  Charles replied 6 months ago.

Hello, my name is***** will assist you.

Is the alarm going off as well, and if so, is there a pattern to it?

what is the CCA of the new battery?

Customer: replied 6 months ago.
no just light above idle around 2000 the horn sounds not sure of battery will have to check
Customer: replied 6 months ago.
battery is 610
Expert:  Charles replied 6 months ago.

Ok, the battery is a bit small for this engine. IT should be a 800 or 1000 MCA.

Is the horn solid or beeping?

Customer: replied 6 months ago.
at just above idle light comes on then as I go up on rpm the horn sounds steady
Expert:  Charles replied 6 months ago.

When was the last time that the cooling system was serviced?

Customer: replied 6 months ago.
New lower unit and pump 2 yes ago
Expert:  Charles replied 6 months ago.

What about the thermostats, poppet and the screen for the air compressor?

Customer: replied 6 months ago.
Haven't checked those
Expert:  Charles replied 6 months ago.

The alarm could be for the air compressor overheating. Can you get me the serial number of the engine, I can show you the location.

Customer: replied 6 months ago.
Og945103 I replaced the pump about 4 years ago
Customer: replied 6 months ago.
Ok
Expert:  Charles replied 6 months ago.

After you locate it, remove the hose from the end of it and unscrew it from the block. Make sure that it is clear.

Customer: replied 6 months ago.
Ok will take it tomorrow
Expert:  Charles replied 6 months ago.

Sounds good. I will be on and off all day. Just reply the same as you have been doing tonight. I will be notified when you do, and get back to you as quickly as I can.

Customer: replied 6 months ago.
Ok thanks
Expert:  Charles replied 6 months ago.

Talk to you then.

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