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#1
11-05-2006, 10:43 AM
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Tachometer
anyone know where to run the wires for a tach on a 1990 honda civic si ?
ive had it lying around and i dont feel like paying someone to do it
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90' Honda Civic Si 2001 Volkswagen Golf 1.8T 
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#2
11-05-2006, 12:10 PM
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Re: Tachometer
If you want to splice the wire for your car's stock tach, its the blue wire behind your cluster on the left clip. If your car has a stock tach, however, i'd say keep the stock one and dont add an extra tach.
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1989 Civic STD - sold 1991 CRX Si - current Free Service Manuals: http://hondatech.info/
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#3
11-05-2006, 03:23 PM
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Re: Tachometer
annnd. do you know what wire i can connect the power to?
its got 4 wires, but ppl are telling me you only need 3 black - ground white ? red - power green ?
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90' Honda Civic Si 2001 Volkswagen Golf 1.8T
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#4
11-07-2006, 02:08 PM
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Re: Tachometer
bump ^^^
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90' Honda Civic Si 2001 Volkswagen Golf 1.8T
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#5
11-07-2006, 04:40 PM
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Re: Tachometer
Quote:
white = switched power (headlights) red = constant +12v Power green = tach input signal (blue wire on two-wire plug @ distributor)
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Jumper harnesses, mpfi conversions, engine harness conversions, vtec subharnesses, etc.
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#6
11-09-2006, 11:32 AM
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Re: Tachometer
i have one in my car if you put the red to constant power it will be on all the time, put the red to an accesory (spade connector on the under dash fuse box) with and the white is just for the lights like your headlights (wire behind dimmer knob). make sure you fuse it.
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#7
11-09-2006, 01:29 PM
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Re: Tachometer
cool thanks
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90' Honda Civic Si 2001 Volkswagen Golf 1.8T
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#8
11-13-2006, 11:40 PM
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Re: Tachometer
alright, its all hooked up but theres a problem...
its saying that my rpms are a lot lower than they acctually are for example... my idle rpm showed is 0 and when im at 4000 rpm it says im at 2000 rpm. any idea how to fix this or should i just be looking for a new tach? the shift light and the back light are working as well. could it be a loose connection on the blue wire? it jumps around when the engine is at idle speed...
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90' Honda Civic Si 2001 Volkswagen Golf 1.8T
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#9
11-14-2006, 03:06 AM
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Re: Tachometer
Sounds like a bad connection to me.
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Cheap, Fast, Reliable..Pick two  Current project: Rio Red 91 hatch. A6/Z6 build, Hondata S300, Tokico illumina/Ground Control. "I'd rather run 12's on steelies than 15's on rotas."
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#10
11-14-2006, 11:37 AM
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Re: Tachometer
oh, ok.
it wasnt a bad connection. inside if the tachometer is a switch that was set saying that the car that was giving the signal was a V8. i just switched it to a 4 cylinder reading and now it works perfectly. ill have to remember that for next time.
__________________
90' Honda Civic Si 2001 Volkswagen Golf 1.8T
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