code 29 and 45

[dogmam]

Hope someone can help i have a 2007 yamaha f150 outboard my boat runs good if i stay around 40 to 45 mph but when i open it up and get around 55 mph it will shut down but it will start right back up and run as long as i stay around 45 mph i got home and put it on the computer and found the 2 codes, but when i run it at home on the computer everything says its normal so not sure what's wrong any ideas.

 

[boscoe99]

Codes may come and codes may go.

 

[99yam40]

29 – Incorrect Intake Air Pressure Sensor

45 – Shift Cut Off

how does it shut down?
if the VST runs low on fuel and pressure drops the motor will shut down .
maybe you have a fuel delivery problem

 

[dogmam]

29 – Incorrect Intake Air Pressure Sensor

45 – Shift Cut Off

how does it shut down?
if the VST runs low on fuel and pressure drops the motor will shut down .
maybe you have a fuel delivery problem

it just shuts off but it will start right back up and run as long as you dont open it wide open is there something i need to replace?

 

[99yam40]

you need to find out what the problem is before you can try to fix it.

shutting the key off as soon as the motor dies, and then draining the VST will tell you if the VST ran out of fuel.
if that is what is shutting off the motor, then you can chase down what is not letting the VST get the fuel it needs to keep the motor running