MSefi.com read only forum (Jan.15,2018)

Until MS2 Extra is stable, your only choice is MS1 Extra if you don't want to grind 2 teeth from you NE wheel in the distributor. Even then, it can be a challenge to get the VR conditioning working right.

What do I do with the extra wire on a 4 wire oxygen sensor? 2 go to the heater, one for the signal, do I just ground the extra wire? V3.0 MS with MS SnS. Thanks.

Yes. In my experience, the OEM Toyota harness has separate grounds for all sensors (O2, temps, MAP, etc). You may find it is already ...

Hi,
I use a hot glue gun - nice and soft ("cushioney"?) and simple to apply