Have you tried unplugging the crank sensor and cam sensor when it does it? Those are teh 2 biggies that the 5 volt reference feed. If it still does it, then unplug them, plus the MAP, TPS, CTS, and IAT Try isolating the PCM back to just power and ground to eliminate as much of the vehicle as you can. Also, does this truck have a tach? I'm wondering if the tach shows the RPM's or not when it fires the coil. Lastly, it may be worth swapping the ASD relay with another. The ASD circuit is what powers the coil and injectors, and it could be energizing when the PCM is not commanding it to and casing some issues.
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2011 SUNDANCE B20CCR SKIFF, 2011 YAMAHA 90HP 4 STROKE, 2011 KARAVAN SINGLE AXLE ALUMINUM TRAILER, LOWRANCE ELITE-7 HDI, MINN KOTA RIPTIDE TROLLING MOTOR
2000CC HYDRA-SPORT 225+HP EVINRUDE SOLD 
AND THE PINK JEEP!!!! R.I.P.
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