Author Topic: Tachometer  (Read 5846 times)

Offline chencho16000

  • Jr. Member
  • **
  • Posts: 76
  • BHP: 2
  • rally driver
Tachometer
« on: March 12, 2008, 10:21:12 pm »
Hello.
  What pin or pins connect tachometer?
 

Offline MWfire

  • Hero Member
  • *****
  • Posts: 721
  • BHP: 35
Re: Tachometer
« Reply #1 on: March 12, 2008, 11:57:09 pm »
free p259(any) (often need 1-10kohm pull up resistor)

Offline rob@vems.co.uk

  • Hero Member
  • *****
  • Posts: 3115
  • BHP: 49
    • VEMS Forum
Re: Tachometer
« Reply #2 on: March 13, 2008, 12:00:52 am »
With the Ford RS Turbo?  You need to take a feed from the Negative side of the coil packs, you may need to double up the outputs using a pair of diodes, but connect one up first and see something happen on the tacho