I have swapped a VQ37VHR with transmission and all the electronics into a 1997 Nissan hardbody. I started it recently and drove it but it is in limp mode due to the lack of WSS. The ABS module is electrically connected to the harness but not plumbed into the braking system of the truck. In other words the original hardbody brake system is still installed and working.

My question is: can I use the output shaft sensor's 10 square waves per revolution with a converter to create 48 square waves per revolution times 4 wheels, in place of wheel speed sensors, to bypass limp mode? If so is there a kit for this? If not has anyone done this?

before the radiator was installed

Still needs work but getting there

 

Great job on the swap, I commented on the visitor message: in theory it should work.I might be wrong however I believe it's 47 teeth wheels. it needs at least 2 inputs for the speedo to read MPH however it'll need all 4 for it to not go back into limp mode.

Being that it is automatic it needs them for proper auto shifting. My best suggestion is to find maybe D21 compatible front hubs with ABS that you can install and place wheel speed sensors in and steal both signals and feed 1 sensor - two channels.

In conclusion: with the automatic it has an internal speed output shaft VSS, one that the TCM will want to include with the calculation of the ones on each wheel.

Also rememeber that once you get this done the ABS pump will want to prime and when it doesnt see pressure it will throw a fault as well. you might have to plumb the G37 unit into the D21 in the future.

 

Thanks! That is helpful and I will get to work on that. Also thanks for the heads up on the ABS module prime/fault.