Practice question
On an electronic fuel injection (EFI) system, the Engine Control Unit (ECU) determines injector pulse width using inputs such as:
- Tire pressure and chain slack
- Throttle position, manifold absolute pressure, engine and intake air temperature, and oxygen sensor feedback
- Brake fluid level and headlight status
- Spoke tension and seat height
Answer: B — Throttle position, manifold absolute pressure, engine and intake air temperature, and oxygen sensor feedback
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