LSX swap wiring question (TCC switch)
06-22-2010, 08:37 PM
#1
LSX swap wiring question (TCC switch) i shouldnt need to wire up the TCC brake switch for my LSX swap since im running a TH350 right?
and also for the VSS sensor, i have a electronic speedometer adapter on my th350 and do i need to run the positive wire from the adapter to the VSS wire or the ground?
and also for the VSS sensor, i have a electronic speedometer adapter on my th350 and do i need to run the positive wire from the adapter to the VSS wire or the ground?
06-23-2010, 09:15 PM
#3
The PCM brake switch is only required for lockup auto transmissions. TH350 is closer to a T56 as far as the wiring aspect is concerned
Any useful VSS will have two wires and only two wires. One side is high signal, other low signal. Hook the green PCM VSS wire up to the high side and ppl to the low side. If the PCM doesnt recognize the VSS signal, reverse them. Sometimes a conversion box is still required
A simpler solution is to find a TH350 tailhousing with the large speedo hole. BOP cars were more common with these than chevys. Then use a 90-93 4L60 VSS/drive/driven gears and set the drive/driven gears to your rear axle/tire size
Any useful VSS will have two wires and only two wires. One side is high signal, other low signal. Hook the green PCM VSS wire up to the high side and ppl to the low side. If the PCM doesnt recognize the VSS signal, reverse them. Sometimes a conversion box is still required
A simpler solution is to find a TH350 tailhousing with the large speedo hole. BOP cars were more common with these than chevys. Then use a 90-93 4L60 VSS/drive/driven gears and set the drive/driven gears to your rear axle/tire size
