Installing race tach signal hookup
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Joined: Jan 2006
Posts: 3,341
Likes: 10
From: Mooresville NC
Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56
Ready 2 Race
Your tach wire needs to go to the PRIMARY of the coil.
The tach wire goes from the PRIMARY non-key side of the coil, to the firewall connector, to the dash connector, to the tach.
It’s a WHITE wire.
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
If People Drove Any Slower They’d Be Going Backwards
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The tach wire goes from the PRIMARY non-key side of the coil, to the firewall connector, to the dash connector, to the tach.
It’s a WHITE wire.
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
If People Drove Any Slower They’d Be Going Backwards.
Re: Installing race tach signal hookup
Its a LS1, so it has 8 coils. Please dont splice into any of those wires
For 99-02, your tach output is R10 (WHT) from the PCM. Please keep in mind, LS1s have a 4cyl tach signal
If it were a 3rd gen or pretty much any other single coil engine, what NINA posted would be dead on. DIS systems are a bit different
For 99-02, your tach output is R10 (WHT) from the PCM. Please keep in mind, LS1s have a 4cyl tach signal
If it were a 3rd gen or pretty much any other single coil engine, what NINA posted would be dead on. DIS systems are a bit different
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