Pinpoint Tests JB: Secondary Ignition (Cop): Introduction
WARNING: This page does not describe the selected car, but rather 27 other vehicles, including the 2021 Lincoln Navigator, 2021 Lincoln Nautilus, 2021 Lincoln Corsair, 2021 Lincoln Aviator, and 2021 Ford Transit-350 HD. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
A damaged ignition system may cause high catalyst temperatures. Check the components next to the catalyst and muffler for heat damage.
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 |
|---|---|
| E-Series, F-150 5.0L, F-650/F-750, F-Series Super Duty 6.2L, F-Series Super Duty 7.3L, Motorhome/Stripped Chassis/Step Van, Mustang 5.0L | 1 5 4 8 6 3 7 2 |
| Mustang 5.2L | 1 5 4 8 3 7 2 6 |
| 3-cylinder applications | 1 2 3 |
| 4-cylinder applications | 1 3 4 2 |
| 6-cylinder applications | 1 4 2 5 3 6 |
| 8-cylinder applications | 1 3 7 2 6 5 4 8 |
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| Corsair 2.5L, | A | 3 | VPWR |
| Escape/Kuga 2.5L, | |||
| Explorer 3.3L, | |||
| F-150 3.3L, | |||
| Mustang 5.2L, | |||
| Transit TiVCT 3.5L | |||
| E-Series, | A | 1 | VPWR |
| F-150 5.0L, | |||
| F-650/F-750, | |||
| F-Series Super Duty, | |||
| Motorhome/Stripped Chassis/Step Van | |||
| EcoSport 1.5L, | B | 2 | VPWR |
| KA | |||
| Mustang 5.0L | A | 1 (Cylinder 3), 3 (All Others) | VPWR |
| Ranger 2.5L, | C | 2 | VPWR |
| Transit Connect 2.5L | |||
| Transit GTDI 3.5L | D | 3 | VPWR |
| All other vehicles | E | 3 | VPWR |