4L60E Tow Haul through PCM?
07-26-2005, 03:39 PM
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4L60E Tow Haul through PCM? I crossposted this to the tuning forum, mods please let me know if I need to delete, but I was hoping to solicit feedback in both forums:
Background-
I have a 2001 5.3L Vortec and original OEM 4L60E running a hacked computer and standalone wiring harness from Howell EFI in my Jeep. The standalone wiring harness cuts out the BCM, among other things, and shuts off the VATS, etc. This setup is in a Jeep with 1 ton axles and 37" tall tires running a 5.13 gearset, and Howell was supposed to have input the tire size and gear ratio when they hacked the computer.
I would really like to put the trans into tow/haul mode, as the drivetrain/tire setup quite a bit of stress on the trans at highway speeds (which I do occasionally) but it would also be nice to have for four wheeling.
Can I put a permanent command via LS1edit or otherwise into the PCM to force the trans into tow/haul, or do I have to somehow wire in a BCM into the ALDL?
TIA-
Background-
I have a 2001 5.3L Vortec and original OEM 4L60E running a hacked computer and standalone wiring harness from Howell EFI in my Jeep. The standalone wiring harness cuts out the BCM, among other things, and shuts off the VATS, etc. This setup is in a Jeep with 1 ton axles and 37" tall tires running a 5.13 gearset, and Howell was supposed to have input the tire size and gear ratio when they hacked the computer.
I would really like to put the trans into tow/haul mode, as the drivetrain/tire setup quite a bit of stress on the trans at highway speeds (which I do occasionally) but it would also be nice to have for four wheeling.
Can I put a permanent command via LS1edit or otherwise into the PCM to force the trans into tow/haul, or do I have to somehow wire in a BCM into the ALDL?
TIA-
