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Hey i got a shift light and i am wondering where the best place to tap into the tach signal wire would be.. anyone got any ideas?
99 SVT with resonatorless exhaust and open element intake
Sound System:
Clarion touch Screen Source Unit
Focal Components,Audiocontrol eq,
eclipse Subs and Amps
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Joined: Apr 2001
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Sure do! Take a look at my tachometer install here and you should be able to find it. Hope that helps!
Kendall '97 GL Zetec ATX " Nippy "
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Kai, i put a tach on my car, but i hooked the sensor wire to the stupid "distributor" cus i kept looking in the Haynes manual for the damn wire from the ECU but they never had it right.. could that be why my car was reading 500-600 rpm's lower than actual as opposed to putting it on the fuse wire?
*fixed* 1998.5 Contour SE Zetec
No Cat, SVT Dual Exhaust, 2 N1 Mufflers, IAT , Diablo Chip, Iceman Intake, Polished TB, "new tranny"
Various other crap, no more mods for a while, just moved.
17.391 @ 81.03 mph
1995 Honda Civic CX Hatchback
15.34 @ 91.67mph
stuff.
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Joined: Nov 2000
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Originally posted by WannaBe-SVT:
Kai, i put a tach on my car, but i hooked the sensor wire to the stupid "distributor" cus i kept looking in the Haynes manual for the damn wire from the ECU but they never had it right.. could that be why my car was reading 500-600 rpm's lower than actual as opposed to putting it on the fuse wire? Its in Haynes,thats where I got it.
Howard
1998 Silverfrost SVT #1612
June mods:
17" ADR RS Limited Limix Wheels
with 215/45/17 Yokohama AVS Sports
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Joined: Apr 2001
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Originally posted by WannaBe-SVT:
.. could that be why my car was reading 500-600 rpm's lower than actual as opposed to putting it on the fuse wire? Yeah, probably so. Since the Contour is distributorless, tachs aren't really read the revs unless there is a wire coming from the computer. Luckily there is. You probably want to change it. 
Kendall '97 GL Zetec ATX " Nippy "
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You might also explorethis arrangement. The Venom system uses it to monitor RPMs - tap into the brown wire here:  I don't have my instructions with me(and I'm colorblind), can any one else using Venom confirm wire color for Mr. Scott........ Mark
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Pin 48 out of the ECU harness (White wire/Black stripe) is the wire you can tap for your Tach/Shift-light and ofcourse, A'PEXi S-AFC.
This is the wire I tap for reading the rpm's on the A'PEXi. It is dead-on accurate.
Regards, Anastazi Father of the Aussie Bar anastazi.sarigiannis@aam.com"Computer games don't affect kids. I mean if Pacman affected us as kids, we'd all run around in a darkened room, munching pills and listening to repetitive music." ----------------------------------- 2000 Silver Frost SVT #1126 of 2150 8" AFE/"Big-Mouth" Intake, Modified BAT Pipe, IAT Mod - A'PEXi S-AFC, Superchip, No Secondaries, Cobra/CSVT Hybrid MAF, Magnaflow True Duals, MYSTERY Mod, Autolite AWSF22FS's and FMS Wires, ES MM Inserts, Cross Drilled/Slotted Rotors w/ Greenstuffs, APR DTM Spoiler, Escort Cossie Vents, NACA Duct, Mirko Splitter, Koni's & H&R Springs, 24mm "Aussie" Sway Bar, 18" Enkei RS-5, 225/40R18 KDW-2's. Pioneer DEH-P7000R, TS-6975's, TS-6855's, MTX BE104, MTX Blue Thunder PRO502 http://www.geocities.com/qikslvrsvt
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To tap into the tach wire, open your hood. Locate the center of the firewall. There should be a wiring harness connected to a rectangular piece of plastic(a.k.a. ignition control module). Attach the wire from your shift lite/ tach to the white wire with a black tracer(white w/ black stripe). Thats IT!!!
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