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

I have the MS-II v3 built and tested. I'm going to run fuel and EDIS-8 off the MS-II. I have the R470W transmission (electronic control) that I was going have controlled by the stock Ford EEC-IV. Everything will be seperate and I've figured out the wiring for transmission and stock EEC. BUT, I'm pretty sure the stock EEC will need some input common to MS-II like throttle position, and maybe even coolant temp and RPM as well. My question is can I mix and match the sensor inputs or will that ultimatley cause conflicts between the two cpu's? Like if the MS-II sends out reference voltage to the TPS, can the signal be sent back to the MS-II AND the EEC? The only other alternative would be to run duplicate sensors, but space is really at a premium. I obviosly don't want to fry something. I know this isn't a transmission forum, but it is MS related.

Thanks for any input

I keep comming back to what the Gostbusters said: "DON'T CROSS THE STREAMS!"

Arrowhead,

In general, you can share sensors that have voltage outputs (TPS, MAP etc.) without problems, unless they have a limited capacity to supply current (EGO sensors, for example).

Sensors that have a resistance output (temperature sensors, for example) cannot be directly shared without modification, you need to make adjustments. There's some info on that here: http://www.megasquirt.info/v22manual/sharesen.htm. It may be simpler to install separate temp. sensors.

Lance.

Lance,
Thanks for the heads up. Thats what I needed to know. Better off running duplicate temp sensors anyway probably. just get the GM for the MS and keep the ford for the stock EEC.

Think I'll try to piggyback the TPS though, that could get weird if I had to hook up two.