Fuel Injectors & Resistors
- Connect tachometer to engine. Start engine and run at idle. Remove harness connector from injectors one at a time. Engine idle speed should drop 100-300 RPM as each injector is disconnected. If engine idle speed does not drop, check the wiring connector, injector resistance or injection signal from the computer.
- Disconnect electrical connector from each injector. Measure injector resistance. See INJECTOR RESISTANCE SPECIFICATIONS table. If injector is not to specification, replace injector.
INJECTOR RESISTANCE SPECIFICATIONS
| Application | Ohms | |
|---|---|---|
| Camry | ||
| 4-Cyl. | 1.6 | |
| V6 | 13.8 | |
| Celica | 13.8 | |
| Celica All-Trac | 2-4 | |
| Corolla (All Models) | 13.8 | |
| Cressida | 1.5-3 | |
| Land Cruiser | 13.8 | |
| MR2 | 13.8 | |
| Pickup & 4Runner | ||
| 4-Cyl. (Non-Turbo) | 1-2.5 | |
| 4-Cyl. (Turbo) | 1.1-2 | |
| V6 | 1.2-2.2 | |
| Supra | ||
| Non-Turbo | 1.8-3.4 | |
| Turbo | 2.0-3.8 | |
| Van | 1.1-2.2 | |