VEMS Community Forum

Technical => Wideband & EGT Gauge => Topic started by: damo_S13 on May 03, 2008, 01:41:01 AM

Title: rpm signal from vems to vems guage?
Post by: damo_S13 on May 03, 2008, 01:41:01 AM
Do i still need the resister if im inputting from the vems ecu taking it from the wire going to the 200sx s13 tacho

IIRC, i did reading something on here about if you have a solid square wave with a good voltage it doesnt need the resistor?

thanks
damo
Title: Re: rpm signal from vems to vems guage?
Post by: [email protected] on May 03, 2008, 08:57:45 AM
You will need the resistor via 5v to pull the tacho line up, but shouldnt need an other resistors.

I like your thinking on this one.
Title: Re: rpm signal from vems to vems guage?
Post by: damo_S13 on May 03, 2008, 03:02:27 PM
thanks rob,

i will get it wired up then over the next week