Injector Circuit
- Disconnect all injector harness connectors. Using a DVOM, check resistance across terminals of each injector. See INDIVIDUAL INJECTOR RESISTANCE table.
- Disconnect injector bank harness connector, and check resistance of injector bank. See INJECTOR BANK RESISTANCE table. Repair wiring or replace any injector circuit not within specification.
INDIVIDUAL INJECTOR RESISTANCE
| Engine | Ohms |
|---|---|
| 2.3L & 3.0L | 15-18 |
| 4.9L, 5.0L, 5.8L & 7.5L | 13-16 |
INJECTOR BANK RESISTANCE
| Engine | Ohms |
|---|---|
| 2.3L | 7.0-9.5 |
| 3.0L & 4.9L | 5.0-6.5 |
| 5.0L, 5.8L & 7.5L | 3.0-4.0 |