1998 310DA..5.7 EFI... Bravo's... stalls in gear at idle..

[Just Chillin]

I'm having a problem with both motors stalling in gear at idle, it seems unless the boat has been running for at least 30 min this problem persists, even after long rides it sometimes still stalls. Both motors idle at 600 RPM and are fine at idle out of gear, but once in gear, they don't want to stay running, a real pain to dock in a narrow slip. Any help would be greatly appreciated

 

[STIHLBOLTS]

Welcome to the board. :grin:

I had something simular happen to me. It was the air idler chip that was bad. Swapped out, no more problems.

 

[Dave S]

Are your motors Carbureted, EFI, or MPI? ECM's control the idle on the EFI and MPI engines and if that's the case you will need a technician with a scanner to correctly diagnose the problem. A faulty IAC (Idle Air Controller) is a fairly common culprit that causes the conditions you describe. If it's carbureted and not controlled by a "black box it" it could be something simple like a bad vacuum line. But it could just as well be a whole bunch of other issues too.