EMB reading too high RPM

[mrevs]

Hi! I have a AE86 with a AE111 4age BT engine. The engine runs fine and the EMB comunicates with the software correctly. Im using V1.11 / 1.25 with the giff tech usb cable. I can change parameters, read and write!

The problem im having is that the RPM readings are too high.

@ aprox. 2000rpm the EMB is reading like 6500rpm, and it reads the RPMs baddly all the way to the engine limit. @ 8000 it reads like 14000rpm

i check the all the wires in the installation and i dont know whats happening? can some one help me?

Regards,

EVS
Costa Rica

[Accord2nrz]

Check your ground connections and if those are good then I would check to see if your drawing your RPM signal from the proper engine speed source.

[mrevs]

thanks ill check the grounds and see what happens