Tacho settings on a Haltech

[Chemicalblue]

Im hoping that this is the right place for this post.

 

I have 79zx and Im trying to find the correct settings for the original tacho in the dash. For whatever reason Im getting no needle movement on all the different settings I have applied.

 

Here are the choices

 

Output state:

 

Inverted or Normal ___

 

 

Tacho Duty 0-100 ___

 

 

Tacho pulses per rev. ___

 

 

 

These are the settings for the Haltech output to drive the Tacho, I have it hooked up to the blue wire that goes directly to the tacho. Any help or advise would be greatly appriciated.

[RTz]

I have 79zx and Im trying to find the correct settings for the original tacho in the dash. For whatever reason Im getting no needle movement on all the different settings I have applied.

 

 

Tommy,

 

I have had trouble with zx tachs and aftermarket EMS's. What I normally use is the MSD tach adapter 8920. Assuming Haltech can output a 12v square wave (typical) it should work for you.

 

http://store.summitracing.com/egnsearch.asp?Ntk=KeywordSearch&DDS=1&Ntt=msd+8920&x=0&y=0&N=+115&searchinresults=false

[Chemicalblue]

Ron,

 

Once again you have offered great info, the MSD 8920 worked perfectly.

 

Thanks. You have been a great help.

 

I plan on posting all my settings and info once everything is worked out. Its been a great learning experience, a little frustrating and allot of fun.

 

Tnx Again

Tommy

[RTz]

My pleasure.

 

Thanks for letting us know it worked!