Innovate's MTX-D Boost/Shift gauge help - Miata Turbo Forum - Boost cars, acquire cats.

Engine Performance This section is for discussion on all engine building related questions.
Sponsored by:
Sponsored by:

Innovate's MTX-D Boost/Shift gauge help

Old 06-21-2014, 07:09 PM
  #1  
Newb
Thread Starter
 
Join Date: Jun 2014
Posts: 1
Total Cats: 0
Default Innovate's MTX-D Boost/Shift gauge help

Hey guys,

I have had 3 Miata's before, this is my first #1st MSM. I have installed Innovate's MTX-L Wideband and a Innovate's MTX-D's Boost/Shift gauge. I have sourced power, legit ground, and the RPM signal from behind the cluster. The issue I am having is my RPM signal is way off the charts. I then found a 04 MSM wiring diagram finding that the Tach signal comes from a microcomputer behind the ECU. So I ran a wire to the signal side of the ignition coil (Brown/White) to the same result as the signal behind the cluster. Then after reading the directions again...

The directions say:
A tach signal can not be acquired from the negative lead of the coil on vehicles with CDI ignitions. For these applications use the negative lead of an injector or a tach adapter (if available for your model ignition).

Go me for remembering that after I looked up the diagram. I then tried the signal side of Fuel Injector 1 (Yellow/Black) Yet again the same results....

I tried every form of programming the gauge, you can set it for 2 cycle, 1 Pulse or 4 cycle, 2 Pulse or 1 cycle, .5 pulse....

The best and closest result I have found is 1 cycle and at idle it reads pretty close at 800 RPM but when I rev to 4 grand, it reads 3,000.

Has anyone else installed it? I am running out of Ideas.
BMX1253 is offline  
Old 01-21-2018, 12:27 PM
  #2  
Junior Member
 
Join Date: Mar 2017
Location: Manassas,VA
Posts: 67
Total Cats: 3
Default

Originally Posted by BMX1253 View Post
Hey guys,

I have had 3 Miata's before, this is my first #1st MSM. I have installed Innovate's MTX-L Wideband and a Innovate's MTX-D's Boost/Shift gauge. I have sourced power, legit ground, and the RPM signal from behind the cluster. The issue I am having is my RPM signal is way off the charts. I then found a 04 MSM wiring diagram finding that the Tach signal comes from a microcomputer behind the ECU. So I ran a wire to the signal side of the ignition coil (Brown/White) to the same result as the signal behind the cluster. Then after reading the directions again...

The directions say:
A tach signal can not be acquired from the negative lead of the coil on vehicles with CDI ignitions. For these applications use the negative lead of an injector or a tach adapter (if available for your model ignition).

Go me for remembering that after I looked up the diagram. I then tried the signal side of Fuel Injector 1 (Yellow/Black) Yet again the same results....

I tried every form of programming the gauge, you can set it for 2 cycle, 1 Pulse or 4 cycle, 2 Pulse or 1 cycle, .5 pulse....

The best and closest result I have found is 1 cycle and at idle it reads pretty close at 800 RPM but when I rev to 4 grand, it reads 3,000.

Has anyone else installed it? I am running out of Ideas.
Was this ever resolved? Looking for the same solution on a 2001
muthagoose is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
StratoBlue1109
Miata parts for sale/trade
20
09-30-2018 01:09 PM
slomiata
MEGAsquirt
5
10-07-2015 01:11 PM
JesseTheNoob
DIY Turbo Discussion
15
09-30-2015 02:44 PM


Thread Tools
Search this Thread
Quick Reply: Innovate's MTX-D Boost/Shift gauge help


Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2018 MH Sub I, LLC dba Internet Brands

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.