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What is the stoichiometric air fuel ratio for a petrol engine?
An engine management system injects 23mg of fuel when calibrated to run at 12.5 AFR. How many mg of fuel will it inject when calibrated for 14.7 AFR?
What is the single most important factor that contributes to high HC emissions?
Which of the following is not an emissions control device?
Which vehicle manufacturer was the first to be exposed in the now infamous Diesel Gate scandal?