Dash Wiring loose ends

[hjoensy]

I did a post search and many were 4-5 years old with different gauge setups. Please help if you have the time. I have the autometer gauges and RF harness.

1. There is a red speed-clock-mem wire going near the speedo. The only pole I have left on the speedo is labeled "out". Does it go here?

2. I have a brown gage send wire by the speedo. I'm assuming this is another 12 volt feed, but I made the feed wire with the 4 7" and 2 12" red wires. I'm assuming the 2 12" went to feed the speedo and tach and hooked those in. Is this just an extra feed?

3. There are 2 speed sensor wires. 1 green and 1 grey. I plugged the green on into speedo. What is the grey one for?

4. There is a red speed-clock-mem wire going by the 5 gage cluster. I'm assuming this isn't used because I don't have a clock.

Thanks for the help

[phileas_fogg]

Which gauge set & is your speedo GPS- or transmission sensor-driven?

If you're using the F5 classic (Speed Hut) gauges and the speedo is GPS-driven, then for #3 you don't need the green wire going to the speedo. If you're using the F5 classic gauges and the speedo is transmission sensor-driven and the transmission is a T5, then leave the green connected to the speedo and ground the grey.


John

[frankb]

Joensy:

I will take a stab at your questions...


1. There is a red speed-clock-mem wire going near the speedo. The only pole I have left on the speedo is labeled "out". Does it go here?

2. I have a brown gage send wire by the speedo. I'm assuming this is another 12 volt feed, but I made the feed wire with the 4 7" and 2 12" red wires. I'm assuming the 2 12" went to feed the speedo and tach and hooked those in. Is this just an extra feed?

3. There are 2 speed sensor wires. 1 green and 1 grey. I plugged the green on into speedo. What is the grey one for?

4. There is a red speed-clock-mem wire going by the 5 gage cluster. I'm assuming this isn't used because I don't have a clock.

1. No. The "out" terminal on the speedo is speed signal to your ECM. The "speed-clock-mem" wire is constant (unswitched) +12v

2. Correct. This is an extension of the "gauge feed" you looped from your 5-gauge cluster.

3. Check the documentation on your speed sending unit on the transmission. The answer should be there.

4. Correct. Unless you have a clock or radio that has a memory, this is not used.

Hope this helps!

[DadofThree]

3. There are 2 speed sensor wires. 1 green and 1 grey. I plugged the green on into speedo. What is the grey one for?


John is a good source on this subject. I used a mechanical speedo, but my notes show that the grey wire is labeled, "GREY - EFI SPEEDO SIGNAL RETURN" so the grey going to your speedo pole labeled "out" may be the answer.

[hjoensy]

I have the auto meter gauges. The instructions do not say anything about gps, so I’m assuming they are sensor driven.

I have a new TKO 600 transmission

[edwardb]

I haven't installed Autometer gauges. But for the other non-GPS brands I've installed (Classic Instruments, Speedhut) the two speed sensor wires are signal and ground. As I recall, it doesn't matter which is which. The signal is an AC sine wave. Your speedo should have separate power (12V) and ground wires. Also, on the TKO, suggested you use the built-in sensor on the right side and put a metal cover over the mechanical sensor port on the left side. If it didn't come with one. If there's only a rubber plug, that's just for shipping and it needs an actual metal cover. Available from multiple sources.

[hjoensy]

Almost done wiring and I’ve spent too much time on the blinkers. I have the Russ Thompson setup. I get a signal at the blinkers wires, but it is constant. Changed the flasher and it is still the same. Any ideas?

[edwardb]

Do you have turn signal lights installed? A standard mechanical/thermal style automotive flasher requires current in order to switch on and off. Without lights drawing current, it will only go on and won't flash. Slightly off topic, but if you're planning to convert to LED lights, they too don't typically draw enough current for the standard flasher. You would need to switch to a solid state style flasher.

[hjoensy]

I do not. I was trying to test all the electrical connections before putting the body on. I was trying it with one of the dash indicator lights. I’ll try with the full assembly tomorrow. Thanks as always for the help edwardb.