Carb Conversion Help

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Nov 22, 2018 | 12:32 PM

kdh023

Thread Starter

Joined: Nov 2018

Posts: 9

From: Arkansas

Carb Conversion Help

I bought a carb conversion kit from jegs and hooked it all up. I’m supposed to hook a loose yellow wire up to the tach wire to work the tach. Can anyone help me find the tach wire please? My car is a 1999 Mustang GT.

Nov 22, 2018 | 01:57 PM

08'MustangDude

Banned

Joined: Jan 2018

Posts: 2,327

From: Pennsylvania

You can use any coil pack signal wire for that.

Nov 22, 2018 | 04:56 PM

kdh023

Thread Starter

Joined: Nov 2018

Posts: 9

From: Arkansas

I went this route because my theft system kept getting thrown, and the people at Jegs said I’d basically throw my ecu away. Now my tach won’t work and my transmission won’t shift.

Nov 23, 2018 | 12:18 AM

kdh023

Thread Starter

Joined: Nov 2018

Posts: 9

From: Arkansas

So if I get rid of my ECU, I won’t be able to use an old coil pack wire, right? If that is the case, where can I one the actual tach wire?

Nov 23, 2018 | 09:47 AM

Urambo Tauro

3rd Gear Member

Joined: Aug 2015

Posts: 939

From: SE Michigan

I believe the wire is tan w/ yellow stripe. Could be orange/white though.

Nov 23, 2018 | 12:10 PM

kdh023

Thread Starter

Joined: Nov 2018

Posts: 9

From: Arkansas

Thank you, when I get off work I will try that. Is there anyway to address the transmission not shifting?

Nov 23, 2018 | 01:43 PM

Urambo Tauro

3rd Gear Member

Joined: Aug 2015

Posts: 939

From: SE Michigan

That's a good question. The transmission is PCM-controlled, so I imagine you'd probably have to get some sort of standalone controller for it. I bet somebody in the Classic Tech section would know.