Synergy

My ecu is not getting power whenn installed in the car; not even getting detected by a comchecker and unable to start the car.
Outside the car, connected to 12V Power source i am able to connect to it.
Already checked fuses; firmware is 3.4.2
Somebody has an idea what might be causing this?
Thanks in advance

90LowNSlo

Have you verified that it's getting power? Check the power source at the plug and work backwards.

Synergy

Will try that today.
But i dont think there's something wrong with it since it worked with the stock ecu.

Synergy

Everything gets power as ist should.
Also reinstalled the factory ecu today together with the afm.
It fired up but stalled because of the 420cc injectors.
At this point i really think theres smth wrong with the megasquirt ecu.

venetox

If you power up the PNP directly with just your battery then plug into laptop do you get a power up?

Do you have a multimeter?
If so take the board out of its case and plug it into the car then start checking for voltage at the 12V in section.

I remember when wiring my brothers 1989 NA the pin that was supposed to output switched power wasn't and instead the one below it was or something like that.
We were having the stock ECU power up but the Megasquirt wouldn't. Haven't had issues after using the correct 12V switched power.

Synergy

Just a conclusion
I was a complete dumbass and installed the megasquirt as if i had a normal MSPNP
not realizing i have a diypnp.

Thank you all for your help!