2003 Solara 1 MZ FE v6

A70nut

Active Member
Authorized Seller
Joined
Sep 21, 2018
Messages
145
Location
Lexington, Ky
Once in a blue moon, when I start the car, the tach wont move at first, then after about a minute, the tach pops on, .."hum" weird.
The ecu will get the igf signal from the ignition coils, the ecu will then output a tach signal to the tach. I'd wait till it's 100% broke to fix it though.