current drawn by the board at high rpm

[andreNL]

I had a strange problem the ecu reseting at high rpm normally around 6400.
as far as i know only a sec. trigger failure can reset the board
but i couldnt track it down.
Today same thing happened the board stopt working completly
at WOT and 5700rpm because the ecu 5amp fuse was blown  ???
fitted a new one and the enigine fired up with one click.

So i think the boards pulls just under 5amp at high rpm wich after
several pulls weakens the fuse wich blows.
When reving hard the resistance in the heated fuse makes it hard for the ecu
to get enough electricity wich crashes.

solution would be to fit a bigger 7,5 or 10amp fuse, but is it wise?
Ecu power is seperated from all V+ supply lines (injectors and coil), but do share a fat common ground

[GintsK]

Isn't same fuse used for ignition coil?

[andreNL]

Thans, i checked the car wiring plan carefully
Looks like the injectors are internelly connected to the same fuse.
  :-\ so should be good now   ;D replaced the fuse with a 15amp wich is the standard value for this fuse. How.much ampere pulles a coil under full load ?

[MWfire]

3-6A on 4 cylinder car for coils

[andreNL]

Ok thank you, i have 3cil   ;D
I run my injectors sequentially so i think the problem only accourse when they start overlapping at higher rpm and openingtimes driving to much current for the fuse to handle.
Only reason i can think of..