tiny tach erratic

[87cucv62]

hi this is my first post here been lingering for a bit lots of great info per this site i ordered and installed a tiny tach in my truck i tried the search function but didnt seem to see my answer was wondering if any one else has a problem with the tach beign very erratic in its reading it jumps all over the place the only time it seems to be ok is when im cruising at 55 on the highway for a bit would love to here some feed back thanks

 

[Gripy]

Jumps around by how much?

 

[87cucv62]

Alot at idle can go from nothing to 1000 rpms and back and while cruising can jump from 650-6000 lol depending on speed and throttle position

 

[ridenby]

Did you follow the directions?

 

[doghead]

Welcome to the site.

Please try to use sentences. It make it much easier to read(and it's a site rule).

 

[doghead]

Did you remove the paint on the line before clamping it on?

Did you follow the instructions? https://www.tinytach.com/installation-diesel

 

[87cucv62]

Yes directions were followed to a t. Paint removed and all. That's y I asked if anyone else has had this problem it seems to only be me

 

[doghead]

Maybe call them and see what they suggest.

 

[ridenby]

It tightens on to where it seems it is going to break the tiny screws.

 

[Drock]

Well this is an Autometer gauge but might be the solution? https://www.youtube.com/watch?v=HhLPAPZxNsM

 

[87cucv62]

maybe ill see if i can tighten it more tomorrow. see if that helps

 

[Barrman]

I have a pulse adaptor for a timing light that works by clamping onto the injector metal line. I have found it has to be on a straight section of line, not even near a bend. How the ground clip is attached and how far from the clamp makes a difference as well.

Calling Tiny Tach does seem like the best way to approach this though.

 

[sschaefer3]

I have had a tiny Tach and it has always worked really well for me, when it is really cold out it takes a few seconds to warm up.