Dakota Digital tacho converter

runswithscissors · 07-24-2010, 07:18 PM

I just swapped the BEAMS into my 95 Celica GT and am having problems with the Dakota digital tacho output converter. It starts up fine but within 1 to 2 seconds my tacho just drops to 0 and the lights on the box shut off any ideas?

puretone · 07-24-2010, 07:30 PM

Quote:

Originally Posted by runswithscissors

I just swapped the BEAMS into my 95 Celica GT and am having problems with the Dakota digital tacho output converter. It starts up fine but within 1 to 2 seconds my tacho just drops to 0 and the lights on the box shut off any ideas?

Sounds like issue with the box right? Give Dr. Tweak a PM, he I think installs these on his BEAMS swaps....

Or just use the tried & true MSD Tacho Adapter #8920

batman722 · 07-24-2010, 10:07 PM

got this from pasqual

SGI-8D

there is TACO signal in beams ecu , plug C-27 silver wire if I remember correctly

cut this wire ,

(Im talking about 6 gen celica st202 )

tacho signal going out from ecu ...

so :

1. cut silver wire
2. ecu side silver wire , connect to SGI-8D IN (called ECM or somthing like that )
3. other side cuted wire connect to SGI-8D OUT high voltage

4. set correctly PIN/SWitch on SGI to get proper RPM on tacho

beams ECU using 5V signal , and stock 6 gen gauge is 12 V this is why You need put signal from OUT high volt

runswithscissors · 07-25-2010, 08:48 AM

The wiring was all done by Dr. Tweak plus I double checked it so it is all correct. Plus how do you explain the tacho working for a few seconds. The box stays on for about 5 seconds whether or not the engine is started.

Servin · 07-25-2010, 11:51 AM

I would dump it and use the MSD tach adapter, sounds like a iffy product. Hell I just looked it up and looks like its for diesel's. There 3 version's, a universal one, one that uses the flywheel for the signal, and another that uses the alternator for the signal. Its also a bit more than the MSD unit too.

runswithscissors · 07-25-2010, 07:04 PM

I am honestly looking at the 8920 now. It looks like it would wire in exactly as the dakota does too.

Servin · 07-26-2010, 05:08 PM

So its wired in off the wires coming from the ecu?

runswithscissors · 07-27-2010, 01:41 AM

Bingo. I just installed an 8920 and it works like a champ. The only problem I have now is that the car idles around 2k and has an intermittent surging idle.

Mroku · 07-29-2010, 09:04 AM

If the ecu's been reset recently the idle be around 2k and slowly drop to normal the more you drive it

Servin · 07-29-2010, 11:19 AM

Check your vacuum lines too, there is a small nipple on top of the TB that's for line to the charcoal canister. Then there is on the bottom left hand side that goes to the fuel pressure regulator. Also check to make sure your IACV is plugged in as well.

puretone · 08-02-2010, 02:36 AM

Sounds like perhaps this tachometer device is fried maybe then?

Or do what I did & install the ST202 BEAMS gauges cluster

07-24-2010, 07:18 PM	#1 (permalink)
runswithscissors Beams Owners Group Join Date: Jun 2010 Posts: 32 Thanks: 1 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	Dakota Digital tacho converter I just swapped the BEAMS into my 95 Celica GT and am having problems with the Dakota digital tacho output converter. It starts up fine but within 1 to 2 seconds my tacho just drops to 0 and the lights on the box shut off any ideas?

07-25-2010, 11:51 AM	#5 (permalink)
Servin Beams Owners Group Join Date: Aug 2007 Location: DFW, Texas Posts: 1,250 Thanks: 13 Thanked 54 Times in 42 Posts iTrader Rating: (2/100% )	I would dump it and use the MSD tach adapter, sounds like a iffy product. Hell I just looked it up and looks like its for diesel's. There 3 version's, a universal one, one that uses the flywheel for the signal, and another that uses the alternator for the signal. Its also a bit more than the MSD unit too. Last edited by Servin; 07-25-2010 at 11:57 AM..

08-02-2010, 02:36 AM	#11 (permalink)
puretone Beams Owners Group Join Date: Aug 2006 Location: Aruba, #1 BEAMS Engine on the Island Posts: 2,339 Thanks: 28 Thanked 57 Times in 56 Posts My Google Map iTrader Rating: (1/100% )	Dakota Digital tacho converter Sounds like perhaps this tachometer device is fried maybe then? Or do what I did & install the ST202 BEAMS gauges cluster

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07-24-2010, 10:07 PM	#3 (permalink)
batman722 No Skills Join Date: May 2008 Posts: 34 Thanks: 0 Thanked 2 Times in 2 Posts iTrader Rating: (0/0% )	got this from pasqual SGI-8D there is TACO signal in beams ecu , plug C-27 silver wire if I remember correctly cut this wire , (Im talking about 6 gen celica st202 ) tacho signal going out from ecu ... so : 1. cut silver wire 2. ecu side silver wire , connect to SGI-8D IN (called ECM or somthing like that ) 3. other side cuted wire connect to SGI-8D OUT high voltage 4. set correctly PIN/SWitch on SGI to get proper RPM on tacho beams ECU using 5V signal , and stock 6 gen gauge is 12 V this is why You need put signal from OUT high volt

07-25-2010, 08:48 AM	#4 (permalink)
runswithscissors Beams Owners Group Join Date: Jun 2010 Posts: 32 Thanks: 1 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	The wiring was all done by Dr. Tweak plus I double checked it so it is all correct. Plus how do you explain the tacho working for a few seconds. The box stays on for about 5 seconds whether or not the engine is started.

07-25-2010, 07:04 PM	#6 (permalink)
runswithscissors Beams Owners Group Join Date: Jun 2010 Posts: 32 Thanks: 1 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	I am honestly looking at the 8920 now. It looks like it would wire in exactly as the dakota does too.

07-26-2010, 05:08 PM	#7 (permalink)
Servin Beams Owners Group Join Date: Aug 2007 Location: DFW, Texas Posts: 1,250 Thanks: 13 Thanked 54 Times in 42 Posts iTrader Rating: (2/100% )	So its wired in off the wires coming from the ecu?

07-27-2010, 01:41 AM	#8 (permalink)
runswithscissors Beams Owners Group Join Date: Jun 2010 Posts: 32 Thanks: 1 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	Bingo. I just installed an 8920 and it works like a champ. The only problem I have now is that the car idles around 2k and has an intermittent surging idle.

07-29-2010, 09:04 AM	#9 (permalink)
Mroku Beams Owners Group Join Date: Aug 2007 Location: Australia Posts: 33 Thanks: 2 Thanked 1 Time in 1 Post iTrader Rating: (0/0% )	If the ecu's been reset recently the idle be around 2k and slowly drop to normal the more you drive it

07-29-2010, 11:19 AM	#10 (permalink)
Servin Beams Owners Group Join Date: Aug 2007 Location: DFW, Texas Posts: 1,250 Thanks: 13 Thanked 54 Times in 42 Posts iTrader Rating: (2/100% )	Check your vacuum lines too, there is a small nipple on top of the TB that's for line to the charcoal canister. Then there is on the bottom left hand side that goes to the fuel pressure regulator. Also check to make sure your IACV is plugged in as well.