Rb25Neo Wiring Problem

[RobHr31neo]

Recently put an er34 rb25 into my HR31 skyline, and wired it up no problem and has been running fine for weeks,

a few nights ago it rained fairly heavily and a little bit of water has gotten in around the wiring harness where the ECU sits.

The car no longer will start, it will just turn over but do nothing, i have pulled the ECU out and with a wiring diagram i tested voltage levels at the ECU plug when ignition is on.

All of the critical wires including, ignition power supply, control unit power supply, control unit power and battery power supply all read 12v at the ECU plug, i also got another ECU and plugged that in to see if mine had shorted out and with the other ECU connected it wouldnt start either. I drove the car home a few nights ago with no problems and the next morning after it had been raining i tried to start it and it wouldnt fire.

Any ideas on anything else i should check, it has me stumped as to what it is.

Cheers

[DVS JEZ]

Start with the basics.

Check all fuses

Check for fuel pump priming

Check for spark, and spark plug condition

Check the injectors are pulsing,

Check fuel at the fuel rail

[RobHr31neo]

thanks mate ill give it a try.

[RobHr31neo]

ok so checked all of these, all fuses are ok. the fuel pump is priming. spark plug condition is good but it is getting no spark, and the injectors are not pulsing. the spark plugs are getting voltage there just not getting trigger, and same thing with the injectors they have voltage but no trigger. i have checked all the wires around the ECU and they all look ok, and everything has voltage, but its not triggering, so i am pretty confused on this one.