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Adjustable fuel injector

by Christine & Scott Gable
for About.com

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2008 Chevrolet Silverado LT2 Flex-fuel 4X4

13 of 18

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2008 Chevrolet Silverado 1500 LT2 4X4 flex-fuel fuel injector rail

The fuel injectors play an important role in enabling a flex-fuel engine to burn varying concentrations of E85 and gasoline. Higher concentrations of E85 require increased injector pulse width; it's all managed by the vehicle's onboard computer.

photo © Adrian Gable
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