How to hook up an aftermarket Tach - EvolutionM - Mitsubishi Lancer and Lancer Evolution Community

Notices
EcuFlash
Sponsored by:
Sponsored by:

How to hook up an aftermarket Tach

Reply

 
 
 
Old May 17, 2017, 05:48 AM
  #1  
Evolved Member
Thread Starter
iTrader: (49)
 
antilag_200's Avatar
 
Join Date: Jan 2006
Location: Lansing
Posts: 803
Thanks: 0
Thanked 0 Times in 0 Posts
How to hook up an aftermarket Tach

I am having a tough time with this one, Running an evo 8 ecu in one of my other cars, if I hook up the RPM detection directly to my autometer tach it does not work. I have a tach adapter that I want to install that interrupts the coil + side , however since I have denso coils with built in ignitors, I am having a tough time figuring out where this needs to go .

Can someone who has ran an aftermarket tach with a stock evo 8 ecu, kindly help

thank you in advance
antilag_200 is offline  
Reply With Quote
Old May 18, 2017, 07:55 PM
  #2  
Evolved Member
iTrader: (23)
 
ExViTermini's Avatar
 
Join Date: Jan 2005
Location: Virginia
Posts: 1,743
Thanks: 0
Thanked 10 Times in 9 Posts
There is a tacho output on Pin 58
ExViTermini is online now  
Reply With Quote
Old May 19, 2017, 08:17 AM
  #3  
Evolved Member
Thread Starter
iTrader: (49)
 
antilag_200's Avatar
 
Join Date: Jan 2006
Location: Lansing
Posts: 803
Thanks: 0
Thanked 0 Times in 0 Posts
tried that and it didn't work, the voltage output is too small
antilag_200 is offline  
Reply With Quote
Old May 19, 2017, 08:38 AM
  #4  
Evolved Member
iTrader: (23)
 
ExViTermini's Avatar
 
Join Date: Jan 2005
Location: Virginia
Posts: 1,743
Thanks: 0
Thanked 10 Times in 9 Posts
Will have to use the autometer bump up box then. I used that output for a dakota digital converter box on my racecar, worked fine, but I guess your tach doesn't like the signal.
ExViTermini is online now  
Reply With Quote
Old May 21, 2017, 01:56 PM
  #5  
Evolved Member
Thread Starter
iTrader: (49)
 
antilag_200's Avatar
 
Join Date: Jan 2006
Location: Lansing
Posts: 803
Thanks: 0
Thanked 0 Times in 0 Posts
yes tried using the autometer tach adapter box to interupt the coil + side for both triggers and got nothing
antilag_200 is offline  
Reply With Quote
Old May 24, 2017, 07:26 AM
  #6  
Evolved Member
Thread Starter
iTrader: (49)
 
antilag_200's Avatar
 
Join Date: Jan 2006
Location: Lansing
Posts: 803
Thanks: 0
Thanked 0 Times in 0 Posts
This is driving me nuts!!

here is the set up, made a complete harness from scratch that mimics an evo 8 engine harness, the car is using denso coils with the built in ignitors.

Things I have tried:
Bought a new Proform shift light and wired the signal wire of this to Pin 58 ( TACH output) and this did not work ( the voltage coming out of the tach out put is very small

Installed a AUTOMETER tach adapter, where I interrupted the coil + side and then ran the signal wire to drive the autometer tach : this did not work either

tried two different tachs and they didn't work

Wired the autometer tach directly to the signal output from the ecu and this didn't work either.

Someone please help before I burn this car down

Last edited by antilag_200; May 24, 2017 at 08:08 AM.
antilag_200 is offline  
Reply With Quote
 
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
crazy_ugly_coyo
AEM EMS
1
Jan 7, 2018 02:01 PM
Matthew Yonke
Evo General
9
Apr 8, 2017 09:13 PM
Evo_Goodness
Evo General
12
Aug 6, 2016 06:53 PM
knubs
Lancer Troubleshooting
5
May 21, 2016 04:45 PM
bouncer07
Evo General
5
Apr 21, 2016 08:34 AM


Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: