- Thread starter
- #21
Everything is wired that way but the dakota digital just stays with a dot and nothing else. The pulse of the rev its not recognized by it
Dakota Digital SGI-8e LS swap (1 Viewer)
- Thread starter TOYOLS1
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Make sure your tach wire on the GM ecu has the pin fully pushed into the ecu plug.
- Thread starter
- #23
Just did that and everything is fine with the Pin and with the wire. You guys think I received a bad unit?
That would be my thought, or you have a bad tach or the venezuealan tach isn't compatible. May want to try a a tach from a 97 or older US model, the venezuelan tach may have different resistance and may need a different voltage signal. If you take apart the gauge assembly you can replace the tach individually. Im sure someone in classifieds has a gauge cluster, then just take the tach out of it or use the whole cluster.
- Thread starter
- #25
I think I have a dakota digital bad unit because it just stays with the fixed red dot, that is not receiving signal input of the rev cable. But that cable is fine and receiving signal
I'll bump this back up....
I have a Fj62 with the factory tach with a 5.3 LS and a Dakota Digital box SGI-8D for the tach. I bought it this way. The factory tach has never worked as long as I've owned it and am digging into it now. At the dakota box I have power, ground, and the input signal voltage (~6v....is this correct?) The tach output wire is spliced into the factory tach wiring, but I'm not sure it was done correctly.
How should I splice in the tach output wire that goes to the factory tach? Do I leave the factory 5 volt signal wire alone? Do I splice into that wire? Do I cut the orginal signal wire and connect the dakota tach output wire?
Do I use the standard output signal or the high voltage output?
What about 'switch 1 and 2'? The instructions that I see aren't clear on those.
Does the green light need to be steady on when operating correctly or does it always blink?
Thanks
I have a Fj62 with the factory tach with a 5.3 LS and a Dakota Digital box SGI-8D for the tach. I bought it this way. The factory tach has never worked as long as I've owned it and am digging into it now. At the dakota box I have power, ground, and the input signal voltage (~6v....is this correct?) The tach output wire is spliced into the factory tach wiring, but I'm not sure it was done correctly.
How should I splice in the tach output wire that goes to the factory tach? Do I leave the factory 5 volt signal wire alone? Do I splice into that wire? Do I cut the orginal signal wire and connect the dakota tach output wire?
Do I use the standard output signal or the high voltage output?
What about 'switch 1 and 2'? The instructions that I see aren't clear on those.
Does the green light need to be steady on when operating correctly or does it always blink?
Thanks
thatcabledude
GOLD Star
Try the following:
-Power and ground
- signal in from GM ECM (white wire)
- signal out from black wire from ignitor. Needs to be hooked into "Hi Volt"
-set input to 4cyl and output to 6cyl
You are saying I need to set my cyl count to 4 instead of 8? And stay with the '6 cyl gauge'?
the green light keeps flashing while the truck is running....no red light.
Thanks
the green light keeps flashing while the truck is running....no red light.
Thanks
thatcabledude
GOLD Star
Yeah. LS stuff needs to be set to 4cyl. Maybe that’s why it hasn’t worked all this time.
Interesting....thanks for the info. Will start with that tomorrow before I reach out to DD tech support.
When I do the initial setup the green light flashes 8 times (for 8 cylinders)...still set it for a 4 cyl input?
Thanks!
When I do the initial setup the green light flashes 8 times (for 8 cylinders)...still set it for a 4 cyl input?
Thanks!
thatcabledude
GOLD Star
Yes
Figured it out....it was 2 things....the cyl count was in fact set to 8 AND my factory gauge is bad.
Thanks for the help.
Thanks for the help.
Hi. Can you please help me. I'm trying to get the tach to work on my ls swap. Was reading on the ls swap post. I have the new dakota SGI-100BT.
My guess is that you only need the power, ground, ignition system tach signal, and the high input. Per image 2, is that the correct way to wire up the dakota?
You can either run the high Voltage to the black wire nearby the data link or the gauge cluster right? Appreciate it. **Edit. got it to work. I ran the high input into the black "tac" wire.
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