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Cold Start Injector Time Switch

Disconnect switch connector. Note terminal identification. See Fig 1. Using ohmmeter, check resistance between terminals "STA" & "STJ" at appropriate temperature. See COLD START INJECTOR TIME SWITCH SPECIFICATIONS  table. Check resistance between terminal "STA" and ground. Replace switch if not within specification.

COLD START INJECTOR TIME SWITCH SPECIFICATIONS

Condition Resistance - Ohms
3S-GE & 3S-GTE
Below 50°F (10°C) 30-50
Above 77°F (25°C) 70-90
To Ground 30-90
3S-FE
Below 86°F (30°C) 20-40
Above 104°F (40°C) 40-60
To Ground 20-80
Fig 1: Checking Cold Start Injector Time Switch
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