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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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Have a 2011 Mercury 4 stroke that God into guardian mode.

Customer Question

Have a 2011 Mercury 4 stroke that God into guardian mode. Replaced TPS sensor now still getting the 6 beep warning. Disconnected th MAP sensor and no beeps but still will not go above 2500 rpm without losing power. Any thoughts?
Submitted: 1 year ago.
Category: Boat
Expert:  Charles replied 1 year ago.

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

Customer: replied 1 year ago.
Great
Expert:  Charles replied 1 year ago.

Would you please post the serial number of the engine?

Customer: replied 1 year ago.
2011 Mercury Outboard 150 [XL] - 1150F23HD
Customer: replied 1 year ago.
Sorry wrong number 1b947984
Expert:  Charles replied 1 year ago.

Got it thanks. Is the alarm going off at 2500?

Customer: replied 1 year ago.
No. When I turn it on after a minute I get the 6 beeps which I know is not a critical default.
Customer: replied 1 year ago.
2 days ago my instrument panel (smart craft) said there was a problem with the TPS sensor but it ran OK. Then yesterday I got the beeps and tried it and it went into Guardian Mode. Change the TPS and it still does it.
Expert:  Charles replied 1 year ago.

6 beeps is for a sensor out of range. It also should go off when you unplug a sensor and then key it up.

What fault is the gauge showing now?

Customer: replied 1 year ago.
I unplugged the MAP sensor and it says a fault in that sensor but no beeps.
Customer: replied 1 year ago.
I figured the TPS is good since I just swapped it out
Expert:  Charles replied 1 year ago.

There have not been many issues with this engine that I have seen. When you get to 2500 does the gauge show anything or dies the engine just not want to take off?

Customer: replied 1 year ago.
With the sensor plugged it went into Guardian Mode limiting the engine. When unplugged it acted like guardian mode but didn't say it was in it. Activates when approaching 2500 rpm
Customer: replied 1 year ago.
The map sensor that is what I unplugged
Expert:  Charles replied 1 year ago.

Have you tried to unplug the shift switch and see if you can get over 2500 RPM?

Customer: replied 1 year ago.
No. Where would I find it?
Expert:  Charles replied 1 year ago.

It is where the shift cable attaches to the linkage. Left side if I am recalling correctly. I do not have the engine here in front of me.

Customer: replied 1 year ago.
Does not seem to be one there
Customer: replied 1 year ago.
Expert:  Charles replied 1 year ago.

Part 7 is the switch.

Customer: replied 1 year ago.
It's asking me for a user name and password
Expert:  Charles replied 1 year ago.

Ok, open this page. Then launch the parts catalog. Type your serial number into the search box. Make sure to use a capitol B. It should start 1B, then the rest of the numbers.

https://www.mercurymarine.com/en/us/parts-and-accessories/parts-catalog