When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
My tach is below zero after the car is shut down with the key out but when I turn it to ACC it jumps up to zero. Any thoughts ? Any knowledge of the subject would be appreciated. :cheers:
That is normal. Your tach is just responding to voltage. It is just preparing itself for the excitement you are going to provide when you activate the starter.
tach problem
