Inliners International Forums General Discussion Hi Performance Help needed to change 4 piles into 1

Tom,

You may also have to check the injector PWM setup - if its off it could cause the problem you are seeing.

While cranking the MS rips the injectors open using 100% duty cycle as the battery voltage is not at 12v when the starter is engaged.

Once the engine gets above the minimum cranking rpm - the PWM kicks in to keep the injectors from getting to hot - remember these are low impedance injectors. Search the following pages for injector PWM. If you turn the PMW off and it runs (only let it run for a few seconds) then you know where the problem is. The injectors and the injectors drivers will get hot fast if you run it more for say 5 seconds.

http://www.megamanual.com/ms2/

Also did you install PWM circuit?

http://www.megamanual.com/ms2/V3trouble.htm