2018 Suzuki 115hp

[Mnj1mxd]

Hello all, I have 2018 Suzuki 115 HP that was rebuilt after it was sunk.
The motor now starts but then dies. I can keep it running if I open the throttle but it will eventually die also. I’m not getting any codes with the SDS software connected so I have no direction.
Does anyone have any suggestions on troubleshooting the issue?

 

[99yam40]

I now very little about that Suzuki, but with most all injected motors the idle air control valve can hang up and not be noticed by the ECU, but may hurt the ECU by drawing too much current from constantly trying to change its position, but does not monitor if it is actually moving.
and all other electronic devices feeding the ECU info are important and are subject to problems after going under.
do you know if the rail fuel pressure stays in spec?
does manifold pressure match barometric pressure from local weather channel at key on before starting motor?
what about all of the other devices readings staying where they should be ?
might not be far enough out to bring in a code, but still cause problems

 

[Mnj1mxd]

I now very little about that Suzuki, but with most all injected motors the idle air control valve can hang up and not be noticed by the ECU, but may hurt the ECU by drawing too much current from constantly trying to change its position, but does not monitor if it is actually moving.
and all other electronic devices feeding the ECU info are important and are subject to problems after going under.
do you know if the rail fuel pressure stays in spec?
does manifold pressure match barometric pressure from local weather channel at key on before starting motor?
what about all of the other devices readings staying where they should be ?
might not be far enough out to bring in a code, but still cause problems

IAC valve was cleaned and it seems to be moving. I didn’t monitor the pressure while the motor was running but it has the pressure called for in the manual. I’ll check the barometric pressure, I didn’t compare the reading. I have gone over the other electronic devices and seem to be inspec.
Do you think I should start on the IAC valve?