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Thread: How Much Does A Low Battery Affect Engine Performance?

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  1. 07-27-2009 06:29 PM #1
    COWL327's Avatar
    COWL327
    COWL327 is offline Senior Member
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    Low voltage and amperage also hurts fuel pump performance and ignition power
    Vortec Performance Tuned
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  2. 07-29-2009 02:24 PM #2
    LS1GMCTruck
    LS1GMCTruck is offline Senior Member
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    Quote Originally Posted by COWL327 View Post
    Low voltage and amperage also hurts fuel pump performance and ignition power
    This actually is the crutch of my inquiry. If my LS engine starts, but only has a half charged battery that the engine is operating on, will the fuel pump output be compromised? Will the injectors open properly for full throttle operation? Does the computer recognize a lower battery state, and compromise engine throttle capabilities & performance, yet still allow it to run?
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