Tachometer diagram wiring, how to find the right wires to tap into

You will need a wiring diagram but I suspect you can't install it without creating problems in the ignition system. If you can hook it up it will need to pick up its signal from the crankshaft position sensor output line.

It says the tachometer wire is Yellow/Green, you do not have that listed. You will find it in the list below, it is highlighted..

WIRING INFORMATION 2001 Subaru Legacy

WIREWIRE COLOR LOCATION

12V CONSTANT WIRE WHITE Ignition Harness

12V IGNITION WIRE GREEN Ignition Harness

12V ACCESSORY WIRE YELLOW Ignition Harness

STARTER WIRE WHITE/BLACK Ignition Harness

POWER DOOR LOCK (-) WHITE Harness In Driver's Kick Panel

POWER DOOR UNLOCK (-) GREEN/RED Harness In Driver's Kick Panel

PARKING LIGHTS (+) ORANGE At Light Switch

DOOR TRIGGER (-) PINK/BLACK In White Connector Behind Fuse Box

TRUNK TRIGGER (-) YELLOW/BLUE In White Connector Behind Fuse Box

TRUNK RELEASE (5-wire) LT.GREEN/YELLOW At Motor In Tail Gate

FACTORY ALARM ARM (-) Factory remote only

FACTORY ALARM DISARM (-) Factory remote only

TACHOMETER YELLOW/GREEN At Ignition Coil

BRAKE WIRE (+) WHITE/BLACK At Brake Pedal Switch

HORN TRIGGER (-) RED/GREEN Harness At Steering Column

LEFT FRONT WINDOW UP BLUE/RED At Driver Window Motor Inside Door

LEFT FRONT WINDOW DOWN BLUE At Driver Window Motor Inside Door

RIGHT FRONT WINDOW UP BLUE/RED Harness In Driver's Kick From Driver Door

RIGHT FRONT WINDOW DOWN BLUE Harness In Driver's Kick From Driver Door

LEFT REAR WINDOW UP BLUE/RED Harness In Driver's Kick From Driver Door

LEFT REAR WINDOW DOWN BLUE Harness In Driver's Kick From Driver Door

RIGHT REAR WINDOW UP BLUE/RED Harness In Driver's Kick From Driver Door
RIGHT REAR WINDOW DOWN BLUE Harness In Driver's Kick From Driver Door

We do not have wiring diagrams here at fixya. Suggest you try this site www.alldatadiy.com

Yamaha 2005 150 HPDI wiring diagram

Looking for wiring diagrams for digital tachometer with trim indicators and warning signals. Mine had the plastic trip arm break. No trim reading on Tach face. Replaced trip arm forsensor arm and now have no reading on the tach at all except extremely light tach Number. All other electrical components work OK.

http://www.offroaders.com/tech/Autogage-Tachometer.htm

HERE IS A LINK TO A WIRE DIAGRAM! THE GREEN GOES TO THE NEGATIVE SIDE OF THE COIL. GOOD LUCK!

Call you service engineer and check it the hardware problem.

Go to the autogauge web site they might have a free downloadable instruction on pdf or html.

Tachometer Wire Negative Wire (-): Any Wire That Is Note Red/Light Green. The diesel tach wire is a green/white wire, located in a 5-pin harness held up with tape behind the parking brake release.
Tachometer Wire Negative Wire Location: At Igniton Coils

According to wiring diagrams online... good luck with this.
KEn

tach signal can be tapped either from the vehicles ecm or the ignition coil itself