1986 z28- gm mechanic pulled the computer and wiring
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Joined: Jun 2007
Posts: 14
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From: coos bay.oregon-u should see it here-it is beautifull
Car: 88 camaro-02 sierra truck-86z28
Engine: 2.8 mpfi-383 in the red z
Transmission: 700r4
Axle/Gears: 3.42
1986 z28- gm mechanic pulled the computer and wiring
i have a 1986 camaro and i did a 383 build and install. Its a probuilt engine sorta expensive, I have been trying to figure out where to put back the relays that the mechanic pulled out. I was doing chemo and had to have help. I think he musta thought i just knew what is needed to run my car without a ecm.I have to go slow at this but if one of you veteran third gen guys could help id appreciate it. I have blinkers headlights horn tach . The car wont start without jumping it. i know it needs a relay for the fuel pump(aftermarket electric) I have a hayden new in box fan controller for the fan. The starter has the fusable links (I think) going to it. It needs a relay i assume. well here is where i need help.
Thread Starter
Junior Member
Joined: Jun 2007
Posts: 14
Likes: 0
From: coos bay.oregon-u should see it here-it is beautifull
Car: 88 camaro-02 sierra truck-86z28
Engine: 2.8 mpfi-383 in the red z
Transmission: 700r4
Axle/Gears: 3.42
Re: 1986 z28- gm mechanic pulled the computer and wiring
hi guys - good morning. Its raining today. But the apple tree looks good with the blossums and with the sun we had last week its making me wanna work on my camaro some more. I bought my car a year or less before i found out i had cancer that was in 2007. My god its been a blur these past years. I kept busy building the engine and transmission during chemo and radiation, it was good therapy too!!! I have to say being sick - it slowed me down. You should have seen me i lost 70 pounds they took out part of my esophagos and took 2/3 of my stomach so they could stretch the intestines up to sew up the segment. I dont see my self getting any better than i am right now--so im gonna muster up the strenght to finish this thing. I need a tranny but there is this electrical i can do. The tranny seems to slip??Yes it will start if i jump it.. red top battery- gear reduction starter a spendy one- b and m ratchet shifter-- hedman ceramic headers. borla exhaust with an electric cut out. Do i need a starter relay?
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Joined: Sep 2002
Posts: 9,192
Likes: 19
From: Cary, North Carolina
Car: 1992 RS
Engine: Carbed 350
Transmission: 700R4
Axle/Gears: 3.42 posi
Re: 1986 z28- gm mechanic pulled the computer and wiring
On your starter - you should have all the wires, fusible links, and the pos battery cable to the larger terminal, and ONLY the purple wire to the smaller one.
Fuel pump - yes run a relay, so that the fuel pump only runs when key is on. Any auto relay is fine. Relay has 5 prongs marked 85, 86, 87, 87a, and 30. You want:
85 = hot-in-run (tap ant wire that gets 12v+ only when key is on
86 = ground
87 = wire to fuel pump positive
87a = not used
30 = 12v+ from battery
86 is always grounded, when 85 gets juice it activates the relay, sending power from 30 to 87.
Good Luck!
Fuel pump - yes run a relay, so that the fuel pump only runs when key is on. Any auto relay is fine. Relay has 5 prongs marked 85, 86, 87, 87a, and 30. You want:
85 = hot-in-run (tap ant wire that gets 12v+ only when key is on
86 = ground
87 = wire to fuel pump positive
87a = not used
30 = 12v+ from battery
86 is always grounded, when 85 gets juice it activates the relay, sending power from 30 to 87.
Good Luck!
Thread Starter
Junior Member
Joined: Jun 2007
Posts: 14
Likes: 0
From: coos bay.oregon-u should see it here-it is beautifull
Car: 88 camaro-02 sierra truck-86z28
Engine: 2.8 mpfi-383 in the red z
Transmission: 700r4
Axle/Gears: 3.42
Re: 1986 z28- gm mechanic pulled the computer and wiring
thank you --its gotta quit raining..ill check it soon
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