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#1 |
![]() Join Date: Aug 2021
Location: Bradenton, FL
Posts: 136
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I had a small auto meter shift light in my previous '90 ZR-1. When I sold it I removed it and it has been sitting in a box for years. I just came across it and would love to wire it my (new to me) '90 ZR-1. The problem is I absolutely cannot remember how I did it. I believe one of my friends helped me do it originally.
Just being upfront, I am a complete electric wiring buffoon, lol. There are 3 wires coming out of the auto meter box.... black, red, and green. Where is the best place to tap into for ground, power, and RPM's? Thanks in advance and I'm sure I'll have more questions. Jay Last edited by JT ZR-Won; 06-26-2023 at 11:09 AM. Reason: Updated with pics |
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#2 |
![]() Join Date: Dec 2020
Location: Sydney, Australia
Posts: 85
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I'm glad you posted this. I just dug my old Harlan shift light out of storage and would like to install it for old times sake and was wondering where people were getting their tach signal from.
For positive power, if you want to keep tapping into other wires to a minimum, you can buy an add a circuit that will let you piggyback off an existing fuse so you can draw power via an existing circuit for power For the other stuff, I'll defer to the guys who've actually done this on their Z. |
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#3 |
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,696
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You can use the ignition diag connector to hook up your shift light.
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[SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX |
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#4 | |
![]() Join Date: Aug 2021
Location: Bradenton, FL
Posts: 136
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#5 |
![]() Join Date: Dec 2003
Location: Arcadia,OK
Posts: 3,384
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__________________
Jerry Downey 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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#6 | |
![]() Join Date: Aug 2021
Location: Bradenton, FL
Posts: 136
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#7 | |
![]() Join Date: Dec 2020
Location: Sydney, Australia
Posts: 85
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That's a great link, thanks for sharing! ![]() |
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#8 |
![]() Join Date: Aug 2021
Location: Bradenton, FL
Posts: 136
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Just curious if anyone has any photos of where they tapped into the tach wire? This might help me tremendously.
I did manage to see a mob of wires coming in from the firewall but still not 100% on which one to start splicing into. Boy, forgot how tight it is in that footwell! |
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#9 |
![]() Join Date: May 2021
Location: france
Posts: 16
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I think on my corvette, a former owner
made the change. What do you think of the photos? Last edited by chris90; 07-06-2022 at 05:04 PM. |
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#10 |
![]() Join Date: Aug 2021
Location: Bradenton, FL
Posts: 136
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Looks like the previous owner did a pretty clean install. Pretty cool
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