Tach issue. Pic Request

[HawkX66]

Originally Posted by Lynn

Yes, my tach was off before changing the board. It read high. Now it reads even higher.

It is an 8K tach.

I may just pull it, make a harness extension so a helper can hold the tack while someone else is driving, and adjust it on the fly.

Originally Posted by SuperNovaSS

You should be able to adjust it while the car is parked. Hook up a known good tach along with this one and adjust until they match at different RPMs. I don’t understand why you would have to tell them what your redline is. A 7k versus a 8k tach certainly makes a difference but the redline does not make a difference.

Jason

You're right Jason. I misspoke. It was not the red line, it was the max. Mine is 7k.
Lynn, did your new circuit board have the max written on it? He wrote 7k on mine. Like Jason said, you shouldn't need to do anything other than in neutral/park. Can't hurt to try I suppose.