My engine developed a 8 second continuous alarm when key is turned on instead of the normal 1 second beep.
The problem started after engine went into the low rpm guardian mode after I passed thru a log jam at the lake. I didn’t hear any warning sounds while engine was in guardian mode at the lake. I noticed the 8 second continuous alarm after bringing the boat home and operating engine in a test tank. The 8 second continuous alarm goes on when engine is hot or cold and engine seems to run ok in test tank . What could cause the continuous 8 second alarm? Listed below are the
trouble shooting steps that I have performed to date:
water flow is good ,engine is not over heating
replaced engine temperature sensor, did not stop 8 second continuous alarm
fuel flow out of fuel filter is good, mechanical fuel pump pressure is 6 psi, electrical fuel pump pressure is 40 psi
batteries are fully charged, oil level is good.
wiring connections are tight
i have not checked engine oil pressure or manifold air pressure sensor yet.
engine seems to run fine in test tank at home but I have not taken boat back to lake to test engine under load.
any suggestions on what to check next will be greatly appreciated.
The problem started after engine went into the low rpm guardian mode after I passed thru a log jam at the lake. I didn’t hear any warning sounds while engine was in guardian mode at the lake. I noticed the 8 second continuous alarm after bringing the boat home and operating engine in a test tank. The 8 second continuous alarm goes on when engine is hot or cold and engine seems to run ok in test tank . What could cause the continuous 8 second alarm? Listed below are the
trouble shooting steps that I have performed to date:
water flow is good ,engine is not over heating
replaced engine temperature sensor, did not stop 8 second continuous alarm
fuel flow out of fuel filter is good, mechanical fuel pump pressure is 6 psi, electrical fuel pump pressure is 40 psi
batteries are fully charged, oil level is good.
wiring connections are tight
i have not checked engine oil pressure or manifold air pressure sensor yet.
engine seems to run fine in test tank at home but I have not taken boat back to lake to test engine under load.
any suggestions on what to check next will be greatly appreciated.