Serial number 1b463701
model number 1250p83hd
I went out fishing for the first time this year and the motor ran great. Set up and trolled for 3 hrs and started big motor up and went to run to a new spot and I couldn’t get it over 1800rpms. It would go into guardian mode and a solid beep would sound. When I backed it off the buzzer would go away. Long story short got it back to the ramp going 7mph and did some reading. I changed the thermostats, impeller, and poppet valve and went back out and tried it again. Still does the same thing. Water coming out pee hole good. All the marine shops here in Michigan are closed do to the Coronavirus till the end of May. I did find one guy that would hook it up to his computer and tell me the codes but he is kind of a shady guy. What should it cost to have the guy get me a print out? Also any other things that I should be looking into? I read on here it could be the throttle position sensor or the neutral safety switch.