tach wire 89 rs - Third Generation F-Body Message Boards

Justinlf16 · 11-17-2009, 02:50 PM

was wondering whatt is the wire color for the tach wire color. I cant find it when i start the car up it moves but it dont move when i rev the car up but when it starts it moves hmm.

NINÅ · 11-17-2009, 03:44 PM

White.

◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙

If People Drove Any Slower They’d Be Going Backwards

When you see fog lights on in good weather beware. Low performance driver ahead. Right grandma?

How bout those nervous nellies too scared to drive without headlights on in the daytime or if there is a little rain!

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Justinlf16 · 11-18-2009, 04:02 PM

thanks, I GOT IT HOOKED UP YES! wat about them red wires and light brown i still got them in the same wire loom and they arent hooked up you have and idea?

Quote:

Originally Posted by NINÅ

White.

◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙

If People Drove Any Slower They’d Be Going Backwards

When you see fog lights on in good weather beware. Low performance driver ahead. Right grandma?

How bout those nervous nellies too scared to drive without headlights on in the daytime or if there is a little rain!

.
.

NINÅ · 11-18-2009, 04:49 PM

Is anything not working in the car?

◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙

If People Drove Any Slower They’d Be Going Backwards

When you see fog lights on in good weather beware. Low performance driver ahead. Right grandma?

How bout those nervous nellies too scared to drive without headlights on in the daytime or if there is a little rain!

.
.

Mr.Dz28 · 03-03-2011, 12:25 PM

yea i got a the same problem on my 83, Car starts and my tak shows it idle at 850 ish, than i rev the motor and it stays stuck at 3. and while driving it moves where it wants. could it be the wire for the tak running to the distributer? or could it be my gauge is done?

NINÅ · 03-03-2011, 01:09 PM

There is circuitry in the dash near the tach.

It’s contained on a small plug-in PCB or integrated in the main board.

On or near the PCB you’ll see a capacitor, replace it.

Also on the PCB you’ll see a resistor chip.

Desolder pins 4 & 10.

Use a 500K potentiometer.

Solder it across traces 4 & 10.

Move the potentiometer to half way.

Start the engine and compare the tach reading with a test equipment quality tach.

Dial it in, unsolder the potentiometer, measure it and install a matching resistor.

◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙

He Must Have Been Be Cheating - Because I Was And He Almost Beat Me.

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torque_is_good · 03-03-2011, 03:39 PM

Quote:

Originally Posted by NINÅ

There is circuitry in the dash near the tach.

It’s contained on a small plug-in PCB or integrated in the main board.

On or near the PCB you’ll see a capacitor, replace it.

Also on the PCB you’ll see a resistor chip.

Desolder pins 4 & 10.

Use a 500K potentiometer.

Solder it across traces 4 & 10.

Move the potentiometer to half way.

Start the engine and compare the tach reading with a test equipment quality tach.

Dial it in, unsolder the potentiometer, measure it and install a matching resistor.

◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙

He Must Have Been Be Cheating - Because I Was And He Almost Beat Me.

.

good stuff, tach and oil pressure gauge are on my restoration list of things to make work

Mr.Dz28 · 03-03-2011, 10:33 PM

Thanks, im gonna give it a shot tomorrow when i get the chance.