QuestionJuly 29, 2025

How is effective pump stroke managed in a HEUI fuel system? engine control module (ECM) mechanical governor throttle position sensor angle road speed governor programming

How is effective pump stroke managed in a HEUI fuel system? engine control module (ECM) mechanical governor throttle position sensor angle road speed governor programming
How is effective pump stroke managed in a HEUI fuel system?
engine control module (ECM)
mechanical governor
throttle position sensor angle
road speed governor programming

Solution
4.2(197 votes)

Answer

Engine Control Module (ECM) Explanation 1. Identify the control mechanism The effective pump stroke in a HEUI (Hydraulic Electronic Unit Injector) fuel system is managed by the Engine Control Module (ECM). 2. Understand ECM's role The ECM adjusts the fuel delivery based on various inputs, including throttle position sensor angle and road speed governor programming. 3. Exclude irrelevant options Mechanical governors are not used in HEUI systems; they are typically found in older mechanical injection systems.

Explanation

1. Identify the control mechanism<br /> The effective pump stroke in a HEUI (Hydraulic Electronic Unit Injector) fuel system is managed by the Engine Control Module (ECM).<br /><br />2. Understand ECM's role<br /> The ECM adjusts the fuel delivery based on various inputs, including throttle position sensor angle and road speed governor programming.<br /><br />3. Exclude irrelevant options<br /> Mechanical governors are not used in HEUI systems; they are typically found in older mechanical injection systems.
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