Possible bad ECU?

[ryanaxberg]

I have a emu connected to a 1jzgte. When I look at the ecu state while I have the car at idle it says that it is running then every like 10 seconds it goes to unknown. And it says dissconnected on the bottom left corner of the screen. Does anyone know why that is happening? Thanks

[ryanaxberg]

single turbo 2nd.emulog

(208.5KiB)Downloaded 39 times

[maKe]

There is something really strange going on with your crank and cam trigger signals. Everything goes haywire suddendly for a split second when looking at the logs. Battery voltage drops down to below 10volts sometimes which is quite mystery also...

It clearly loses trigger signal, but I don't think it should say disconnected if the ecu receives +12volts constantly. I would double check your wiring and measure crank and cam sensors and the wiring to verify they are working correctly.

[ryanaxberg]

It doesn't go down to 0 volts it is just that the ecu keeps on resetting I think. The car stays running the whole time. I just made my own wiring harness and I triple checked each wire when I did all of it. I really don't think that it is that.

[Karel]

Ryan i would sugges, that your problem may be, just wrong USB comunication.