tach wire question?
Thread Starter
Registered User
Joined: Jul 2005
Posts: 435
From: Flint, Michigan
tach wire question?
I have a 96 Formula, with a gen I small block in it now. I have a HEI distibutor, and want to know if anyone knows how I can hook up the factory tach? do you know what wire to connect to the distibutor? thanks in advance. Brian
Registered User
Joined: Mar 2007
Posts: 177
From: beverly,ma
you need to find diagram of tach wiring to see how many it uses,if it is one power and one is ground you just hook power from power side of tach to dist.and you should know where ground goes if factory tach uses more than two wires then i'm sorry i can't help
Thread Starter
Registered User
Joined: Jul 2005
Posts: 435
From: Flint, Michigan
I still have everything there, it controls my speedometer, Im not sure if I still need the computer or not. I just didnt want to rip it out if I was gonna need it. I am waiting til I get everything all set before I start cutting out wires.
Registered User
Joined: Aug 2002
Posts: 4,676
From: Melvindale, MI, US
ok
look here
http://shbox.com/1/harness_connector_faces.htm
select C230 at the bottom, this connector is located behind the pass side kick panel, use the wire colors to locate the correct connector, it is pin D that you want to use, this is the wire that goes from the PCM to the cluster, I don't know exactly which wire it is at the PCM though, but from this connector, you can either trace it to the PCM, or just cut the wire there and extend it to the Dist.
look here
http://shbox.com/1/harness_connector_faces.htm
select C230 at the bottom, this connector is located behind the pass side kick panel, use the wire colors to locate the correct connector, it is pin D that you want to use, this is the wire that goes from the PCM to the cluster, I don't know exactly which wire it is at the PCM though, but from this connector, you can either trace it to the PCM, or just cut the wire there and extend it to the Dist.