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4.6L General Discussion This section is for non-tech specific information pertaining to 4.6L (Modular) Mustangs built from 1996 to 2004.

FPDM with a return setup?

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Old Feb 20, 2011 | 06:23 PM
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Blk003GT
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Joined: Apr 2008
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From: mi
Default FPDM with a return setup?
do u need an fpdm with a return style setup?
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Old Feb 20, 2011 | 07:18 PM
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99 GT vert's Avatar
99 GT vert
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from what i understand it depends on if you have a high or low impedance injector i may be wrong but high impedance injectors do not need one but low's do if i am wrong please correct me
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Old Feb 20, 2011 | 07:22 PM
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teej281
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From: South Central PA
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I'm pretty sure that tuners like it to be kept, just so they are able to tune the pulse width of the injectors. Like above, I'm not 100% entirely sure though.
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