Hi Grumpy, I will have to do some more on this later ,I guess at least we know the gxv120 module works good on the gxv160 really good actually. I have got a little behind, i have a 4hp mariner, 2 chonda water pumps 2 husqvarnas chainsaws,a genquip gi2000 and sanli to repair and service so I better get started . Thanks heaps Grumpy this is interesting and I think over time we will all benefit. [Linked Image]