PINPOINT TEST JB: Secondary Ignition (COP): Introduction
WARNING: This page is about a different variant/trim than selected.
NOTE:
A damaged ignition system may cause high catalyst temperatures. Check the components next to the catalyst and muffler for heat damage.
NOTE:
There is additional information available on this procedure. Please copy and paste the following URL into your internet browser: mms://multimedia.ford.com/seopts/Service_Tips/ignition3.wmv.
This pinpoint test is intended to diagnose the following:
- spark plugs (12405)
- secondary side of the coil
- exhaust spark plug wire (12286) (6.2L engine only)
| Vehicle | Firing Order for Coil On Plug Applications |
|---|---|
| BASE, 4-cylinder applications | 1 3 4 2 |
| BASE, 6-cylinder applications | 1 4 2 5 3 6 |
| BASE, 8-cylinder applications | 1 3 7 2 6 5 4 8 |
| 5.0L Mustang, 6.2L F-150, F-250 - F-550 | 1 5 4 8 6 3 7 2 |
| BASE, 10-cylinder applications | 1 6 5 10 2 7 3 8 4 9 |