Does anyone know why my rpm guage in my AVCR read different from my original rpm. Should i reset my AVCR?
Thanks in advance.

Btw. this happen after i put my catback back without connecting the ground wire.

 

Mine is doing the exact same thing. Reading about 500 at idle when it is really at 900. Can't figure it out either. Im just ignoring it and going by the PFC reading.

 

I have the original (non-super?) AVC-R and you have to set the engine type (to rotary) in the setup so that it knows your engine fires every cycle, not every-other cycle. That would explain why you would see about half the actual rpms.

I also recently found this nice link to manuals online:
http://www.alltrac.net/manuals/

Hope this info helps...