Poor Acceleration

1. Auxiliary air regulator stuck closed.
2. Defective intake air sensor.
3. Intake system leaking.
4. Faulty electrical connection in wiring harness or electrical connectors.
5. Defective ECU.
6. Poor electrical connections.
7. Speed/reference mark sensor.
8. Faulty engine temperature sensor.
9. Faulty throttle switch.
10. Ignition system.