Air Pressure Sensor Issue

[Speedratchet76]

(2002 Busa) The bike will only run if the vacuum line is off of the air pressure sensor. I replaced the sensor, but it still
acts the same way. It is the correct sensor and the sensor wiring passes the tests in the factory service manual. All vacuum hoses are good
and routed correctly. No codes ever come up in dealer mode. Thanks for any insight on this issue.

 

[Hayabusa Wannabe]

Welcome to the forum @Speedratchet76.

 

[Hayabusa Wannabe]

Is there something else going on? What is the history of this bike and your current maintenance efforts? It goes to a hard-coded mode without the sensors, who knows, ultra rich? So to my question above, how are the plugs / injectors / etc.

 

[Speedratchet76]

Had fuel issues. New OEM fuel pump and injectors. Also has a new cam sensor. Starts easy and idles okay until the sensor has the vacuum added to it.

 

[Hayabusa Wannabe]

For clarity are the injectors OEM? Are the prior ones available to retry with the pump?

 

[Speedratchet76]

For clarity are the injectors OEM? Are the prior ones available to retry with the pump?

Yes and the old ones were tried just in case, but same issue

 

[03busamd]

Any updates? Same issues