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

Posted: **Wed Aug 15, 2012 6:16 pm**

The wiring diagram here says the following:
Pin 33:

Variable reluctor A/C signal input (ground) for Input 1 & Input 2 (if used). Note that you can use only one of OPTIN+/- or VRIN+/-, because they connect to the same processor pin. For the second ignition input (Input 2), use VR2IN+ (Ampseal pin 4). For more info, see: vr.htm

Pin 21:

This is the ground pin for the second variable reluctor input (typically for a VR or Hall camshaft sensor). For use with a variable reluctor sensor (that has an AC signal) connect this wire to the second VR sensor wire. For use with a Hall sensor, leave this wire 'floating' by snipping it off and sealing it. For more info, see: vr.htm

So, if I have a VR input 2, i.e. a 2nd VR sensor, which wire does its ground connect to- pin 33 or pin 21? ... or both? ... or either?

Posted: **Wed Aug 15, 2012 6:20 pm**

And it also states:
pin 32 harness and pin 33 harness wire colors are TBD (to be determined)- have those been determined?

Sorry if this has been asked before but I'm trying to plan my harness.

Posted: **Thu Aug 16, 2012 5:58 am**

abe,

Use pin 21 for the ground of the second VR sensor (but not a Hall sensor). I have fixed the documentation. I don't know if the colors have been sorted - I will try to find out if they have and add it to the docs.

Lance.

Posted: **Sat Oct 20, 2012 12:45 pm**

Lance wrote:abe,

Use pin 21 for the ground of the second VR sensor (but not a Hall sensor). I have fixed the documentation. I don't know if the colors have been sorted - I will try to find out if they have and add it to the docs.

Lance.

Thanks.

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

Can someone clear up VR sensor wiring on the V3 MicroSquirt?

Can someone clear up VR sensor wiring on the V3 MicroSquirt?

Re: Can someone clear up VR sensor wiring on the V3 MicroSqu

Re: Can someone clear up VR sensor wiring on the V3 MicroSqu

Re: Can someone clear up VR sensor wiring on the V3 MicroSqu