Cold Start Injector Time Switch Test
- Unplug cold start injector time switch connector. For cold start injector time switch location, refer to appropriate illustration in the appropriate THEORY/OPERATION article.
- Using ohmmeter, check resistance between terminals "STA" & "STJ" at appropriate temperature. See Fig 1. See COLD START INJECTOR TIME SWITCH SPECIFICATIONS table. There should be continuity between terminal "STA" and ground. Replace switch if not within specification.
NOTE:
"STA" terminal is fed current from ignition switch during cranking. "STJ" goes to cold start injector.
COLD START INJECTOR TIME SWITCH SPECIFICATIONS
| Application | Ohms | Condition |
|---|---|---|
| 22R-E | 30-50 | Below 50°F (10°C) |
| 22R-E | 70-90 | Above 77°F (25°C) |
| 22R-E | 30-90 | "STA" To Ground |
| 3VZ-E | 30-50 | Below 50°F (10°C) |
| 3VZ-E | 70-90 | Above 77°F (25°C) |
| 3VZ-E | 30-90 | "STA" To Ground |