optimax 150 2001

[toxic23]

hey i just change out 2 direct inj on 3 and 6 which was causing a miss and ruff idle the motor ran 4000 rpm before fix, now took boat for test drive and smoother than ever idle, revs up no prob but when put under a load at or passing 3200 rpm it bogs out and figets 3200 3500 it sound like it wants more but its restricted , i swaped the cpu from my other motor and still same issue on that motor. i noted that the motor had no prob in rev under load rev up to 5700 . my smart craft guages say check water temp fault, check speedo, check paddle plz help

[mhm]

hey i just change out 2 direct inj on 3 and 6 which was causing a miss and ruff idle the motor ran 4000 rpm before fix, now took boat for test drive and smoother than ever idle, revs up no prob but when put under a load at or passing 3200 rpm it bogs out and figets 3200 3500 it sound like it wants more but its restricted , i swaped the cpu from my other motor and still same issue on that motor. i noted that the motor had no prob in rev under load rev up to 5700 . my smart craft guages say check water temp fault, check speedo, check paddle plz help

What's the block temp? Sounds like you're in guardian mode due to overheat with check water temp fault. Check speedo and paddle sounds like you have no readings or bad readings from sensors. How did you know to change #3 and #6 direct injector? Do you have the diagnostic software?

[toxic23]

150 optimax 2001

no actually i did a drop test and 3/6 had no response to me removing spark plug wires, secondly i removed plugs and those 2 were clean like if they were never used so i moved around fuel inj and did the drop still same issue now moved around direct inj and did a drop test boom now it started missing in 1/2 took them out and gave them 12v and 1 barley opened and the other is stuck swapped them out now great smooth idle. but yes the day i tested the boat both motors were overheating left motor turned off and would not start and the right which is my main prob brought me back in . when at the marina they both started right up no prob i change both impellers prob fixed now i noted the run 167 f at idle, i also swapped temp sensor from L motor to the R same readings so i order thermostats. how do i clear codes without ddt they told me to disconnect batt terminals and touch + and - together and that should do the job have u herd of that , also if im in guardian mode y is the l motor not in guardian mode ,and i swapped the cpu from both motors same issue unless my guages hold memory ??? thanx