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ACS codes · Powerplant · Engine Fuel and Fuel Metering Systems

AM.III.I.K4 · Knowledge

Continuous-flow fuel injection theory, components, operation, troubleshooting and…

Updated October 25, 2026 · element text from the FAA Aviation Mechanic ACS (FAA-S-ACS-1)

Practice AM.III.I.K4 out loud, free

What the ACS says

Continuous-flow fuel injection theory, components, operation, troubleshooting and adjustment.

A sample oral question on this element

“How does the Continental/TCM fuel-injection system's pump supply fuel across the engine speed range?”

Study source: FAA-H-8083-32B (Aviation Maintenance Technician Handbook, Powerplant), chapter 2, pages 2-24, 2-25

If this code is on your test report

Your Airman Knowledge Test Report (AKTR) lists an ACS code for every knowledge area you missed on the written test. On the A&P oral, each of those codes adds one question to that section, on top of a minimum of four random questions (FAA Mechanic Test Generator FAQ). So if AM.III.I.K4 is on your AKTR, expect the examiner to ask about it. More on how codes turn into oral questions: A&P ACS codes: know your codes before the oral.

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