Electric pump conversion signal wire?
Thread Starter
On The Tree
Joined: May 2018
Posts: 144
Likes: 9
Electric pump conversion signal wire? 1996 LT-4
There are a million ways to skin this cat, but what have you guys used to turn the water pump relay on? Id like to avoid fishing all the way into the dash. What is keyed hot under the hood and close the the battery? Just run a scotch lock? Wondering everyone's choices before I take the plunge. Ive just been pulling the fuse on the Mezziere OEM wireing but thats getting old after 2 days! lol
There are a million ways to skin this cat, but what have you guys used to turn the water pump relay on? Id like to avoid fishing all the way into the dash. What is keyed hot under the hood and close the the battery? Just run a scotch lock? Wondering everyone's choices before I take the plunge. Ive just been pulling the fuse on the Mezziere OEM wireing but thats getting old after 2 days! lol
Whatever you do, use a relay. Even if you have your ABS or whatever you want to use, it’s a low amperage connection simply to trigger the relay. Just find a source (that is only hot when the key is on) in the underhood fuse panel to run a wire to. I just smashed a wire into a socket using the existing blade fuse. Been that way for over a decade now. There are all kinds of relay diagrams floating around here you can reference.
TECH Veteran
Joined: Apr 2008
Posts: 4,985
Likes: 112
OP
probe for a pink wire that is hot with key on, engine running in the under hood fuse block. Also use a inline fuse on the +12v side. IMHO any electrical "ad on" is only as good as the wiring job to it
Have had a Meziere 118HD on for 20 years and 90+k mi. YMMV
probe for a pink wire that is hot with key on, engine running in the under hood fuse block. Also use a inline fuse on the +12v side. IMHO any electrical "ad on" is only as good as the wiring job to it
Have had a Meziere 118HD on for 20 years and 90+k mi. YMMV
Thread Starter
On The Tree
Joined: May 2018
Posts: 144
Likes: 9
Sorry guys forgot to update. I removed the air pump and used one of the bolt holes to mount a relay. I ran a 20 amp blade fuse from the blue Mezzier wire directly to the alternator hot. I then used the relay to switch the ground by using the pink wire in the primary cooling fan circuit as signal (keyed hot).
Trending Topics
Thread Starter
On The Tree
Joined: May 2018
Posts: 144
Likes: 9
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo