Switchig off the "Short circuit testing"

[jocco]

How to switch off the "Short circuit testing" on the controller?

I tried exactly as the manual says but it didn't work.

My pump only buzzes when I turn the engine on. While it is off everything is OK, and everything functions as it should.

Is this normal? Also I have noticed that while the arm switch is and the engine is running, the pump starts to pump in the nozzle (according to the LED on the dash).

I found a similar thread here but there was no answer.

How do I make the pump to stay turned off while the arm switch is off and the engine is running.

I hope all this makes sense, sorry for my english.

[sroevo9]

Adjust the “Start PSI” value by setting the dial to approx 25% of the vehicles maximum boost.

See for this error codes and Count the flashes:

1 = low level fluid
2 = open circuit
3 = short circuit
4 = voltage problem (Hi or Lo)

Hope this help you.

[jocco]

Thanks for the reply, but this does not help me at all.

Once I arm the water/meth system through a switch on the yellow wire I get no error codes.

The problem is that while the arm switch been off, the pump starts to buzz for 5second repeatedly once I turn the engine on.

As I said I read in the manual that there is a "short circuit test" that the controller does and that it can be deactivated, I just cant seem to do it.

Has anyone tried this?

[NS]

I just pulled a controller out of stock and tested it and it switched between modes without a problem.  When in constant short circuit test mode the pump should buzz continuously.  If it is cycling then you may have a problem. 

[jocco]

@NS, the pump buzzes when the arm switch is off, but it does not buzz continuously.
It repeats the buzz every 5seconds. And it does this only when the engine is on.

What I dont understand is how can everything be OK when the engine is not running.

The pump and controller are connected directly on the battery positive.

Also while the engine is running and I turn on the system via the arm switch everything is OK, I get no error codes.

I dont get it. What should I do? The only logical explanation in my head is that when the engine is running the power that goes to the controller and pump might increase. How should I test this?

Was planning to fit another switch to kill the power on the pump and the controller completely.

[NS]

I would possibly try a power and ground source that isn't in the engine bay.  You might be getting some RFI caused by the ignition system while the engine is running.  I've also seen PWM fan controllers affect the injection systems before too.