91 Nissan Sentra Tach wire

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=77913
Printed Date: May 10, 2025 at 5:19 PM

Topic: 91 Nissan Sentra Tach wire

Posted By: thesaint124
Subject: 91 Nissan Sentra Tach wire
Date Posted: May 17, 2006 at 7:02 AM

Hey guys, looking for a tach wire in a 91 Nissan Sentra. my wiring info says it's either GREEN/ yel, blue/blk at the coil, but there aren't any wires that match at the coil... does anyone have any updated information?

thanks,

Replies:

Posted By: mo12v
Date Posted: May 17, 2006 at 8:37 AM

I have:

Tach Signal

BLUE/BLACK OR WHITE

AT ECCS OR POWER TRANSISTOR *

* Electronic Concentrated Control System (ECCS) Unit Located Below Center Of Dash Behind Center Console. Tach Wires In 14 Pin Connector, WHITE At Pin #1, BLUE/BLACK At Pin #2. WHITE Wire Only Located At Power Transistor.

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MO

Don't Learn from Others Mistakes
You Might Be the One That Knows.

Posted By: thesaint124
Date Posted: May 17, 2006 at 8:42 AM

grat thanks, I'll give that a try... Doewn't directwire say the same thing?

regards

Posted By: mo12v
Date Posted: May 17, 2006 at 9:02 AM

D/W shows Green / Yellow or Blue / Black @ coil, ECCS or cluster

Always Verify.............

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MO

Don't Learn from Others Mistakes
You Might Be the One That Knows.

Posted By: thesaint124
Date Posted: May 17, 2006 at 5:30 PM

one more thing, anyone have any idea what colour the defrost wire is?

thanks

Posted By: thesaint124
Date Posted: May 18, 2006 at 4:18 AM

hey guys, don't mean to ask so many questions but I can seem to find the ECCS unit?? above it says, "Unit Located Below Center Of Dash Behind Center Console" But I can't seem to find anything that looks like it... anybody have any ideas? is it maybe integrated with anything? or any other places I could possibly grab a tach signal from?

thanks

Posted By: thesaint124
Date Posted: May 18, 2006 at 11:25 AM

just to expand on this, It seems there are 2 other places I have come across that I might be able to grab the tach signal from... one is,

Cold Start Wire- BLACK / YELLOW At Ignition Switch Harness,

and possibly the ECU... anyone have the location, and wire colour on the ECU, and if not, do you think I would be able to get a tach signal off the above black / yellow wire from the ignition harness?

thanks again.