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Old 05-14-2009   #1
bobbyhi
 
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Default Shift Light Install

I am adding a shift light and was wondering if I could splice into the tach wire above the hush panel or do I have to go back to the ignition module??? Probably a stupid question but I want to make sure before I start slicing and dicing I think the wiring schematic shows a white wire for the tack input.
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Bob Anderson
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Old 05-14-2009   #2
-=Jeff=-
 
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Default Re: Shift Light Install

you could splice into the wire going into the cluster for TACH.. otherwise, under hood at IM
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Old 05-15-2009   #3
A26B
 
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Default Re: Shift Light Install

Run the tach lead through the firewall to the white wire you mentioned. It's in a plug near the ECM. I can't take a photo right now, but could in the morning & show you where it is and my shift light tie-in. No need to splice into the wire as I recall.
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Old 05-16-2009   #4
bobbyhi
 
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Default Re: Shift Light Install

Quote:
Originally Posted by A26B View Post
Run the tach lead through the firewall to the white wire you mentioned. It's in a plug near the ECM. I can't take a photo right now, but could in the morning & show you where it is and my shift light tie-in. No need to splice into the wire as I recall.
Jerry,

If you could send a pic it would really help. I can't find the cluster Thanks...........
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Bob Anderson
1990 #2405 White/Gray
Haibeck chip,4:09 gears,Power Effects Exhaust,5 spoke chrome,C5 brakes,49th Street rockers,K&N,Hurst,Headers,Upper & lower ported

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Old 05-16-2009   #5
A26B
 
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Default Re: Shift Light Install

Bob,
Took a few photos, pulled out a spare harness & photo-shopped a bit.

I didn't have the connector to plug in to the receiving end of the plug shown, so I trimmed the end of the tach lead & tinned it until it fit snugly into the harness end of the F connector. After it was fitted, I threaded it through the cap, pushed it into the harness side & slid the cap down & installed it. The black retainer holds the wire in just fine & never had a problem. No cutting or splicing into the harness.

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1994 ZR-1, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc.
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Old 05-16-2009   #6
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Default Re: Shift Light Install

Jerry,

Where did you snake wire thru firewall for shift light? I'm about to do this myself.
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Old 05-16-2009   #7
bobbyhi
 
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Default Re: Shift Light Install

Thanks Jerry. I saw that one but I didn't think it was the right connector.
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Bob Anderson
1990 #2405 White/Gray
Haibeck chip,4:09 gears,Power Effects Exhaust,5 spoke chrome,C5 brakes,49th Street rockers,K&N,Hurst,Headers,Upper & lower ported

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Old 05-16-2009   #8
A26B
 
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Default Re: Shift Light Install

Quote:
Originally Posted by XfireZ51 View Post
Jerry,

Where did you snake wire thru firewall for shift light? I'm about to do this myself.
Well, I can't remember & can't see it under the dash because it's probably under the insulation. I can see from the top that it goes down below the steering column but can't get under the car now to see it. Sorry I can't be of more help right now.
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JERRYS LT5 GASKETS & PARTS
http://www.jerrysgaskets.com
1994 ZR-1, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc.
2016 Black-Red, 3LT-Z51 Auto 8-speed.
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Old 05-16-2009   #9
bobbyhi
 
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Default Re: Shift Light Install

Quote:
Originally Posted by XfireZ51 View Post
Jerry,

Where did you snake wire thru firewall for shift light? I'm about to do this myself.
There is a black wire coming thru the firewall just next to the steering column. I put my tach wire thru that hole. I now have to find a hot on/off wire above the hush panel for power. Got the ground wired in under the panel.

Jerry thanks again for the help
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Bob Anderson
1990 #2405 White/Gray
Haibeck chip,4:09 gears,Power Effects Exhaust,5 spoke chrome,C5 brakes,49th Street rockers,K&N,Hurst,Headers,Upper & lower ported

Minnesota State Director
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Old 05-17-2009   #10
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Default Re: Shift Light Install

If your installing the shift light in the vent.
You can pick up hot and ground from the center console the extra wires the factory has left for just this reason.

They are by the hatch release botton (center console).

Pete
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