Which spark plug wire socket on the distributor cap should coming from cylinder number 1 be plugged into for a 1989 Volvo 240 DL?
The firing order for a 1989 Volvo 240 DL is 1-3-4-2. Therefore, the spark plug wire from cylinder #1 should be connected to the terminal on the distributor cap that is labeled #1 (or is in the #1 position if it's not labeled).