Fuel pump and idle valv

[FilipD]

I have a Megasquirt 1 v3.0
I think I have som problems whit my MS

- When i start the engine it get up the 4000 rpm, but when i disconnects the idle valv it only get up to 1000 rpm. I have tride to change various parameters in tunerstudio but nothing different happens. Can i have wired it wrong? ( +/-)
I have checked the Valve and it seems to work.

- The fule pump does not start. Should i have 5 volts from pin 37?

[FilipD]

with the fuel pump bypassed i made these logs.
one is no bypass.

No idle valv !

[DaveEFI]

Pin 37 is a switched ground for the fuel pump relay. The other side of the relay goes to +12v. It normally runs for a second or so at switch on, then only runs again after seeing the tach signal when cranking and running.

[FilipD]

okey. I am new at this, (and i´m from sweden so i can have problem whit the language)

But the tach wire is already connected to vr?

[FilipD]

I have 5 volts from pin 5. D19 is lose from the board, can that be the issue?

[FilipD]

I have a photo of the board

[Matt Cramer]

Removing D19 is often done to troubleshoot if the diode is burnt out.

[FilipD]

okay. but when it is loose, could it do so I have 5 volts at pin37?

My fan was directly connected to the MS without relay. Could it have damaged the box so I get 5 volts?

[Matt Cramer]

Unless you built a special 40 to 50 amp output to drive the fan, you probably damaged the MS trying to direct drive a fan.

[FilipD]

No, it what was wrong wiring.
what can I do? which componet get damaged do you think?
The engine works if the fule pump is bypassed. So i can make it separate.