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The air-fuel mixture is determined by your car's ____.


While cars used to use carburetors to ensure that the air-fuel mixture was correct in its ratio, modern vehicles use an ECM (electronic control modules) to determine the optimum air-fuel mixture.

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Courtney Todd

11 months ago

Only tired a few categories. I was most looking forward to assembling objects. It shows microscopic diagrams that you can't zoom in on, and asks in regular question format which will make an object of assembled. I can't see the pic, and the answers are straight up A.B.C.D. with no hints of anything else. ??? Also, a LOT of ads for games and stuff. Every screen is a new ad for color match or cartoon me.

Chase Krieger

11 months ago

great tool for practice! heres to hoping i pass! :)


11 months ago

It’s very helpful if h actually put the time in to study

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