Changing Spark Plug Wires - Fiero GT (Andy’s Garage: Episode - 60) 

Helmandollar Auto Diagnostics consider yourself lucky...lol. The 60 degree engine placement is a pain.

Yes, the firing order must be correct

@@PhillipsVision thank you!

Firing order is 1,2,3,4,5,6; cylinder 1 is the one on the far right, on the trunk side

The Fiero GT firing order is 1,3,5 starting at the far right facing the trunk. The 2,4,6 cylinders are located along the fire wall with 2 being at the far right back. To access plugs for 2,4,6 you’ll need to reach around along the back of the engine below the rear valve cover. Plugs for 1,3,5 are right in front of below the front valve cover.