G-power

HI everyone,
Same computer same USB to rs232 adapter i always i quickly connect my ems now start offline connection problem I can't connect but i have Aem serial Guage serial Guage work with Ems no problem. I format pc win10, win8, other serial USB adapter I try not connection always offline

80%downtime

Run the AEM program in administrator mode. Also, update the drivers. Check AEM's website for the drivers. If that still fails, make sure that your ECU is grounded properly, otherwise it won't power up and you'll always get an offline connection.

G-power

Thank's for Answer, I'll control again all

G-power

Problem continues
I'll control ground ,USB serial driver ,other cable
Serial Guage work fine, car start no problem

80%downtime

See if you have the proper drivers installed with no overlap from other drivers. Also, try different USB ports on the computer. I can't remember exactly how I did it, but I had this problem in the past and unplugging and replugging the USB during the ECU detection process did it for me.

G-power

Friend my labtop work only one USB port other 2 port die
Today I try other labtop I think my labtop problem