747 harness question...
01-28-2007, 08:45 PM
#1
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Car: Bee-Bowdy
Engine: blowd tree-fity
Transmission: sebin hunnerd
Axle/Gears: fo-tins
747 harness question...
Is pin B2 (fuel pump signal) necessary on the 747? I'm making a harness and I'm trying to weed out all the non-essentials.
That's what I thought. I've never had to make a harness from scratch. I've done conversions and such where these little piddly things were already there.
01-29-2007, 02:10 PM
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Car: check
Engine: check
Transmission: check
IIRC the fuel pump voltage signal is used for the injector battery voltage compensation. It will work w/o this input as the 0 volts area of the table is set to the same as the 13-14 vots (or so) area.
But the injector PW will not be compensated for differences in vehicle voltage.
RBob.
But the injector PW will not be compensated for differences in vehicle voltage.
RBob.
01-30-2007, 11:59 AM
#5
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Car: Bee-Bowdy
Engine: blowd tree-fity
Transmission: sebin hunnerd
Axle/Gears: fo-tins
Does you EBL use this input for PW voltage correction? I plan on using that with this harness I'm making.
I just remembered that my fuel pump relay has two outputs. I can use that second output for this if I need to.
I just remembered that my fuel pump relay has two outputs. I can use that second output for this if I need to.
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