1992 tachometer - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 6 (permalink) Old 03-07-2008, 11:55 AM Thread Starter
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1992 tachometer

what are my options to mount a tach on my 92...what type of pickup / sensor and sources for a tach...? i heard there is a harness / plug already under the dash in the models 92 and newer...
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post #2 of 6 (permalink) Old 03-07-2008, 06:13 PM
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There should be a factory harness in the column but I am thinking that only certain tachs will read it. Read alittle here and see what you think>>http://www.dieseltruckresource.com/d...d.php?t=102027

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post #3 of 6 (permalink) Old 03-09-2008, 04:39 AM
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Some early 92's didn't come with tach provisions. The plug to look for is a flat 4 wire black colored plug. It should be to the left side of the column. It might be hidden up behind the headlight switch.

Now for tachs that work with the Dodge signal. Isspro makes a couple of tachs that work. Westach makes a couple. Tiny tach is another option.

AutoMeter does not make one that works with the Dodge harness/signal.

Dodge gave us a 5 volt signal for the tach output. That is why most tachs do not work on the Dodge setup. Most tachs can not read that low of voltage signal. There are some converter boxes that could read the signal and power a tach.

93 W350 w/duals, fuel pin turned, 6X.018" injectors, 4" exhaust, 3" air intake horn, HX40/16, G56 /SBC Con-OFE, 307's axles' 2" skyjacker lift, B&W flatbed
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post #4 of 6 (permalink) Old 03-12-2008, 06:22 PM
 
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What are the options for a 91.5?
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post #5 of 6 (permalink) Old 03-12-2008, 07:39 PM
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Welcome to the TDG! I went with the altenator method. I lost a link to a write up with detailed pics that was in my old PC. I would guess that philip knows where to find it though.

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post #6 of 6 (permalink) Old 03-16-2008, 05:10 AM
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The 91.5's didn't have factory tach provisions. That truck has its own computer also. The 92/93 years are different. About the only options you have is the AutoMeter 2888 alt driven tach or a tiny tach. Isspro also makes a magnet kit with a sensor to run a tach from.

I thought I had a link for the wiring on an alt tach. But I couldn't find it.

93 W350 w/duals, fuel pin turned, 6X.018" injectors, 4" exhaust, 3" air intake horn, HX40/16, G56 /SBC Con-OFE, 307's axles' 2" skyjacker lift, B&W flatbed
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