Stock .bin for a 94 K3500 ~ 7.4 Liter ~ 4L80E ~ NP241

[dave w]

Does anyone have or know the BCC for a 94 K3500 ~ 7.4 Liter ~ 4L80E ~ NP241? I'm doing a '427 PCM upgrade and need assistance with a starter .bin file. I'm wonder, was $OE for 4x4 only?

Thanks,
dave w

[EagleMark]

There's several bins in the $OE information thread along with wiring diagrams for $OE and 4x4.
http://www.gearhead-efi.com/Fuel-Inj...Information-OE

From what I have read/learned and seen $OE is 4L80e and even have a 16197427 PCM with 5.7L 4l80e $OE bin.

$OD was for 4l60E

Wiring and paremeters for transfer case output seem to be only difference in bins.

[dave w]

http://www.gearhead-efi.com/Fuel-Inj...Information-OE

I looked at the schematics on the above link, on sheet 4 / pin F8 is indicated as 4WD Low Range input. Does anyone know if pin F8 is ground when the transfercase is in Low Range?

Thanks,
dave w

[EagleMark]

Just a guess from experiance dark blue is usually a ground. Look at sheet 2 for other dark blu and they have power to other input.

[PJG1173]

I looked at the schematics on the above link, on sheet 4 / pin F8 is indicated as 4WD Low Range input. Does anyone know if pin F8 is ground when the transfercase is in Low Range?

Thanks,
dave w

all the Tcase conversions ive done its been a switch to ground for 4lo. a micro switch on the 4wd shifter works well for this too.