Which of the following is not true with respect to Engine management?

All QuestionsCategory: Automotive ElectronicsWhich of the following is not true with respect to Engine management?
chetan shidling asked 5 years ago

Options:

  1. Ensure proper combustion of fuel at a given temperature and pressure
  2. Reduce the emission rate of the vehicle
  3. Future changes in exhaust regulation have to be adopted
  4. Adjust the engine RPM/ignition timing based on octane rating of the fuel
1 Answers
chetan shidling answered 5 years ago

I want current answer of this multiple questions. Can anyone give me the correct answer?