Electrical Tachometer inline fuse wire?

Creomod

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Sep 14, 2018
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Hello guys,I"m installing a tachometer in my 1989 5.0 coupe,I just need to know what wire should I hook up the red wire from my tachometer to? That"s the one I need to put a inline fuse on correct?I do see a black wire connected to the ignition ,right were the key goes in.Do I connect there and inline fuse it?
 

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jrichker

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Hello guys,I"m installing a tachometer in my 1989 5.0 coupe,I just need to know what wire should I hook up the red wire from my tachometer to? That"s the one I need to put a inline fuse on correct?I do see a black wire connected to the ignition ,right were the key goes in.Do I connect there and inline fuse it?
The following are diagrams courtesy of Tmoss & Stang&2birds

Ignition switch wiring
IgnitionSwitchWiring.gif

For tach power, connect the wire to the red/lt green wire coming from the ignition switch. Or tap into the wiring of the fuse positions shown on the diagram.


See the following website for some help from Tmoss (diagram designer) & Stang&2Birds (website host) for help on 88-95 wiring; http://www.veryuseful.com/mustang/tech/engine/ Everyone should bookmark this site.[/b]

TFI module wiring for 94-95 Mustang GT
http://www.veryuseful.com/mustang/tech/engine/images/Mustang-94-95-IgnitionControlModule.gif

Complete computer, actuator & sensor wiring diagram for 94-95 Mustangs

Complete computer, actuator & sensor wiring diagram for 91-93 Mass Air Mustangs

Complete computer, actuator & sensor wiring diagram for 88-90 Mass Air Mustangs

5.0 wiring diagram for Fuel Injectors, Sensors, and Actuators

Main body EFI wiring harness

Ignition switch wiring

O2 sensor wiring harness

Vacuum diagram 89-93 Mustangs

HVAC vacuum diagram

TFI module differences & pin out

Fuse box layout

Mustang 5.0 Lights and Radio schematic, by TMoss:
http://www.veryuseful.com/mustang/tech/engine/images/mustangFoxLights-Radio_diag.gif

87-92 power window wiring

93 power window wiring

T5 Cutaway showing T5 internal parts

Visual comparison of the Ford Fuel Injectors, picture by TMoss:

Convertible top motor wiring http://www.veryuseful.com/mustang/tech/engine/images/mustang88VertTopMotorCkt.gif

Engine mounted fuel injector harness

Location of the TPS, IAB, and the 10-pin connectors on a 5.0, picture by TMoss:

Starter circuit

Alternator diagram for 94-95 Mustangs.
 
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mikestang63

SN Certified Technician
Aug 27, 2012
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easiest way is to get one these and add it to the fuse location for the radio and wire in the red wire to it.. Any parts store stocks them.

1591480329294.png
 
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Creomod

Active Member
Sep 14, 2018
131
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San Antonio,Texas
jrichker said:
653458[/ATTACH]
For tach power, connect the wire to the red/lt green wire coming from the ignition switch. Or tap into the wiring of the fuse positions shown on the diagram.


See the following website for some help from Tmoss (diagram designer) & Stang&2Birds (website host) for help on 88-95 wiring; http://www.veryuseful.com/mustang/tech/engine/ Everyone should bookmark this site.[/b]

TFI module wiring for 94-95 Mustang GT
http://www.veryuseful.com/mustang/tech/engine/images/Mustang-94-95-IgnitionControlModule.gif

Complete computer, actuator & sensor wiring diagram for 94-95 Mustangs

Complete computer, actuator & sensor wiring diagram for 91-93 Mass Air Mustangs

Complete computer, actuator & sensor wiring diagram for 88-90 Mass Air Mustangs

5.0 wiring diagram for Fuel Injectors, Sensors, and Actuators

Main body EFI wiring harness

Ignition switch wiring

O2 sensor wiring harness

Vacuum diagram 89-93 Mustangs

HVAC vacuum diagram

TFI module differences & pin out

Fuse box layout

Mustang 5.0 Lights and Radio schematic, by TMoss:
http://www.veryuseful.com/mustang/tech/engine/images/mustangFoxLights-Radio_diag.gif

87-92 power window wiring

93 power window wiring

T5 Cutaway showing T5 internal parts

Visual comparison of the Ford Fuel Injectors, picture by TMoss:

Convertible top motor wiring http://www.veryuseful.com/mustang/tech/engine/images/mustang88VertTopMotorCkt.gif

Engine mounted fuel injector harness

Location of the TPS, IAB, and the 10-pin connectors on a 5.0, picture by TMoss:

Starter circuit

Alternator diagram for 94-95 Mustangs.
[I already hooked up the green wire to the green and yellow wire that goes to distributor but I need to hook up the ref wire from the tack it goes with inline fuse to ignition source. What wire is the. Is it the red and green tfi wire?
 

Creomod

Active Member
Sep 14, 2018
131
13
28
40
San Antonio,Texas
easiest way is to get one these and add it to the fuse location for the radio and wire in the red wire to it.. Any parts store stocks them.

1591480329294.png
I made one of these using a fuse with wires both connectors,but what I need to know is what wire to connect to? Red and green stripe wire I head somewhere is" Power on 1". Is that the wire I should splice my red tach wire with inline fuse?Sorry just scared the car will catch fire.
 

Blown88GT

Founding Member
Nov 13, 1999
2,172
518
164
Palm Beach Gardens, FL
Cool but I bought it do I still have to insert coloed fuses into it? It has a spot for 2...
Red green wire on the ignition power on 1 or tfi? Isn't that tfi for the tack signal green wire?
One position is for the existing fuse (#18, 15A). The other position is for the new circuit (5A).
Or just connect it to the Red/Lt. Green at the ignition coil, which is already fuselink protected.
No to TFI.
 
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