OK, this is not my boat, but still an EFI V8 question and i thought i might find some help here...
my POS (former) daily driver car is a 92 Camaro 5.0L TBI. i am at my wits' end trying to fix it.
basically it cuts out at anything over light throttle as if no fire or fuel once the engine warms up a bit. it starts cold fine, and runs great until the engine temp gets over about 160º, and then falls on its face if you get on it. it will still idle, cruise, and light accelerate for a little while, and then totally dies & won't restart.
the whole ignition system has less than 3k mi on it, i have a fuel pressure ga under the hood showing steady pressure within spec. i can see the injectors spraying fuel into the TB when it's trying to start...
what i can't figure out is WHAT IS THE RELATIONSHIP TO THE ENGINE TEMP???
here's a thread i started: http://www.thirdgen.org/techbb2/showthread.php?s=&threadid=196366
ANY ideas / help greatly appreciated... thanks, Trace