Neither is a big deal.  Yes the temp II sensor should be fine with the
digifant.  They are the same as far as resistance values go.  For the
coolant temp that is easy to.  One wire is the signal (yellow with red
stripe) while the other is brown and ground.  So ground the one and hook
the other one up and you should be good to go.  I can't speak to the
connections in the black box on the firewall.  I have never done this
conversion.  I just use the digijet system and I have never had any
issues doing that.  Have fun with your project.

Ken Wilford
John 3:16
www.vanagain.com

Brendan Slevin wrote:
> I've decided it's worth it to me to take the extra time and swap the
> digifant ecu/harness in when I put the 2.1 in.  The only thing that'll stay
> 1.9 is the cooling system.  The temp II sensor on the 2.1 is in a different
> spot along with being a different style sensor.  Is the 1.9 temp II sensor
> compatible with the digifant, just a matter of extending the wires to reach
> the stock 1.9 location?  The coolant gauge sender is a two wire on the 2.1
> and only one on the 1.9, so I feel like I'll have to work something out
> there, too.  I'm excited to get started, just waiting for the tax refund to
> get started!
>
> brendan
>
>