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    Idle Control Valve EFI GT40

    Hi All, Our 1996 Super Sport Nautique with GT40 EFI, surges at idle from 600 to 1200rpm about 30% of the time, on a friends recommendation i took of the idle control valve and cleaned it out and it is now a bit better but still does it about 15% of the time, can i just disconnect it and set the...
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    GT40 RPM Dropping

    Hi All, I have a PCM GT40 351 in a 1996 Nautique Super Sport V Drive, when running at any rpm it suddely looses power and rpm's for a few seconds (we slow down) and them goes back to the exact rpm and speed we where going before (speed's up). Its also almost the same rpm ratio as well eg...
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