Question

which of the following modes is used by technicians during a cranking sound diagnosis to fool the engine into cranking without starting?

a. fuel shutoff mode
b. clear flood mode
c. key on, engine off mode
d. stoichiometric mode

Explanation:

In fuel shut - off mode, fuel supply to the engine is cut off. This allows the engine to crank (due to the starter motor operation) without actually starting as there is no fuel for combustion. Clear flood mode is for dealing with a flooded engine, key on, engine off mode doesn't make the engine crank, and stoichiometric mode is related to the air - fuel ratio for proper combustion during normal operation.

Answer:

A. Fuel shutoff mode