Frequency of ignition (Honda Accord 3)

Firing timing is the order in which the sparks alternate between cylinders. The spark must occur at the correct time in the combustion cycle, otherwise engine damage can occur. For this reason, connecting the correct spark plug to the correct distributor terminal is extremely important. To avoid trouble, always replace spark plug wires one at a time.



Cylinder No.1 is the one closest to the drive belt or the end of the engine pulley. All Accord and Prelude engines fire in a 1-3-4-2 order. To achieve this, they use distributors from two different manufacturers: Hitachi and Toyo Denso (often simply called Denso). While the firing order and spark plug wire placement are the same for both manufacturers, the distributor caps have different shapes and mounting points; you need to know which distributor you used and purchase the same one when replacing it.



An additional aid to proper installation is that for most Hondas the distributor cap is marked with the same numbers as the cylinders, or at least has one mark for cylinder number 1. All distributors are numbered clockwise when viewed from the top or cap side.

(Publication reprinted from the website «www.hondabook.ru»)