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PWM fuel pumps. When did GM start using it?

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Old 03-24-2012, 12:42 AM
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Question PWM fuel pumps. When did GM start using it?
When did GM start using PWM on Corvette and Camaro fuel pumps? Is it in the ECM or is it a separate system?

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Dhamen
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Old 03-24-2012, 08:04 AM
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Not sure when they started but I believe they use a fuel pump controler
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