Can I get the reading with out ECM power?

Got engine on stand with TB and TPS on but voltage read is in mV's?

Shouldn't it be more like a .65V or better at Idle or closed??

I am guessing that one of the pins is a power wire??

Oh yea 383 with Proffessional Products TB.

Thanks Kirk

 

The computer provides power to the IAC. Gonna be hard to get a voltage reading without any provided power.

 

Same thing with TPS?

Thanks

 

Oops, yeah, I meant TPS.

 

10-4 thnks