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Engine Difficult To Start Under Hot Conditions
- Ensure fuel system performs properly (fuel pump, fuel filter, fuel injector and fuel pressure regulator).
- Ensure ignition timing is correct.
- Check fuel pressure control vacuum switching valve (if equipped) and wiring.
- Check coolant temperature sensor and wiring.
- Check idle air control valve (if equipped) and wiring.
- Check cold start injector system (if equipped).
- Check air temperature sensor and wiring.
- Check Electronic Control Module (ECM) and wiring.