Tag Archives: closed

Holley 534-54 Digital Pro-Jection Throttle Body Injection Closed Loop Kit

Designed for 1 barrel and 2 barrel TBI digital pro-jection systems Replaces fuel system completely Can be disabled or bypassed by grounding 1 wire Gives automatic altitude adjustments Contains harness, oxygen sensor, mounting bung, and connections Product DescriptionThis closed loop … Continue reading →

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How engine idles with closed throttle body?

If the throttle body is closed there is no air going to the engine. how is the engine still running at idle. it cant run just on fuel alone, can it? and what keeps it from turning off?

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