Injector Circuit Test
Disconnect all injector harness connectors. Using digital ohmmeter, check resistance across terminals of each injector. See INDIVIDUAL INJECTOR RESISTANCE table. Disconnect injector bank harness connector, check resistance of injector bank. See INJECTOR BANK RESISTANCE table. Repair wiring or replace any injector circuit not within specification.
INJECTOR BANK RESISTANCE (1)
| Engine | Ohms (X) | ||
|---|---|---|---|
| 1.9L MPFI | 1.2-1.8 | ||
| 2.3L OHC MPFI | 7.0-9.5 | ||
| 2.3L Turbo MPFI | 1.2-1.8 | ||
| 2.3L HSC MPFI | 7.0-9.5 | ||
| 3.0L MPFI | 5.0-6.5 | ||
| 3.8L MPFI (FWD) | 4.0-6.0 | ||
| 3.8L MPFI (RWD) | 4.0-6.0 | ||
| 5.0L SEFI | 13.5-19.0 | ||
| 5.0L MA SEFI | 13.5-19.0 | ||
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INDIVIDUAL INJECTOR RESISTANCE
| Engine | Ohms (X) |
|---|---|
| 1.9L MPFI | 2.0-2.7 |
| 2.3L OHC MPFI | 15.0-19.0 |
| 2.3L Turbo MPFI | 2.0-3.0 |
| 2.3L HSC MPFI | 13.5-16.0 |
| 3.0L MPFI | 15.0-18.0 |
| 3.8L MPFI (FWD) | 13.5-16.0 |
| 3.8L MPFI (RWD) | 13.5-16.0 |
NOTE:
For further component testing and information, see appropriate TESTING article in the COMPUTER ENG CONTROL section.