Went to connect to my AEM ems today, and it says ecu offline?

Not sure on why...I've connected to it many times..

Same cable/laptop.

I know or @ least think it's not the laptop, as I can connect to my uego 19-1 gauge just fine.

When I connect & turn the key it usually connects up, but now it says parity error....?

Car runs fine..no problems there..

Thanks in advance.

Problem solved...

Read on aem's forum, it can be caused by an unhooking a harness and then starting up the ecu...

I just reset the battery and all was well.