Re: 3rd Gen Tach Help!
It reads like the return spring is broke or needle stuck at max or no input from a now defunct ECM. Plus, if it did work, it would show higher rpm's than V8 normal because its a V6 tach.
You might look for the input wire from the ECM and hook it to the TACH terminal on the HEI unit, just to see if it would work.
I think your best bet is to get an aftermarket tach and wire it up or substitute the existing tach in the dash.
Give a man a rescued dog for the health of both their souls. May 2017 ROTM Winner - Thank you!
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
CUBS - 2016 World Series Champions - Thank you, Joe Madden … enjoy your next chapter.