Cold Start Injector Time Switch Test
- Unplug cold start injector time switch connector. For cold start injector time switch location, see the appropriate illustration in the THEORY/OPERATION article.
- Using ohmmeter, check resistance between terminals "STA" & "STJ" at appropriate temperature. Refer to the 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 |
|---|---|---|
| All Engines | 20-40 | Below 86°F (30°C) |
| " | 40-60 | Above 104°F (40°C) |
| " | 20-80 | "STA" To Ground |