Jae992

Hey I very new to so if this info is post plz direct me to a link I'm just not sure wat I'm looking for. So I got a 87 camaro that came factor a 2.8 and I got it from my boss who had a 350 in it first time I saw it fast forward the 350 is gone car is a shell with trans and I got it free I bought a 91 305 motor complete with harness and ECM from a guy who had it factory in his camaro my question is how do I hook it up the passager side is no brainer I pulled out the old harness and cut the driver side harness but it's long enough to be reconnected to the new on the new one the harness same part is cut on it my question is do I just connect each wire to the same color they look like different colors motor and trans are not in car I'm trying to figure this out any help would be great again 91 complete motor and harness into a 87 shell

Jae992

Anyone?

Jae992

i guess nobody knows welp you can delete this thread since noone has a clue

RedLeader289

iTrader: (2)

There is a chance that no one saw this, for instance, I just now saw it.

Ok, so a quick inventory:

You have an 87 roller, with a transmission
a 91 305 with all the required stuff (harness, etc).

What part is giving you issues exactly? My thoughts would be if you have all the wires then you could just remove what you don't need that is currently on the car and go from there.

Jae992

the driver side wiring on the 87 has less wiring then the 91 the po of the motor said his camaro had a electric gauge inside so im confused on where to hook up the extra wires and also about the two new connectors the 91 has i will upload photos

Jae992

Jae992

RedLeader289

iTrader: (2)

Hm, ok, I've not worked with the newer models (mine is an 83) but it can't be that difficult. Can you try to upload the pics again? they didn't load for some reason.

Jae992

Jae992

Jae992

Jae992

jcurso02

The 87 camaro came with a mecanical fuel pump off the motor. The 91 camaro had a electrical fuel pump In the tank. That's why you have more wires

jcurso02

The first picture is the fan relay connector and the fuel pump relay connector..

jcurso02

I'm dropping a 89 tbi 305 motor in a 87 roller right now.

jcurso02

2nd picture is a. Connector for somewhere by brake booster on the 91. That 87 roller won't have it.

jcurso02

I mean the 3rd picture sorry

jcurso02

I believe the second picture looks like the guy sniped all the wires to the rear of the fuse box.

Pocket

iTrader: (24)

First huge mistake

When it comes to electrical always ask yourself "Do I know without a shadow of a doubt what this wire goes to?" before cutting ANYTHING

Next, why did you cut it there? There is no reason to

The proper method of converting harnesses is to repin the body connectors. Since your TBI harness is essentially trash now, Id find an 88 TBI harness and move the C221 off the 87 harness. Basically plug and play into an 86-87

Jae992

I know very little about it. I can't use the 91 harness at all and if I resolder my old harness wat would I do because when I got the car it was a shell of a 350 carb that was sold out of it

Jae992

My 87 came with a 2.8 factory so I would have a mech pump?

Jae992

Yea he cut it in the same spot I cut mine he was putting a 00 ls1 or w.e he had out of his forth gen into his 91

Jae992

If I convert to carb how hard would it be? That motor is timed ect already so wat would I need? Aside from a carb and new intake honestly which would be less of a headache for a novice going carb or doing the tbi

Pocket

iTrader: (24)

Carb would be simple to install. Tuning it properly is a whole new can of worms

jcurso02

If you don't have the entire donor car that the engine came from. The engine swap can be difficult. Your best bet is to buy a old 350 truck motor and dropping it in. You need battery voltage to the ignition coil and that's it. The rest is all vacuum powered.

Jae992

I may have access to that car wat would I need from it I have ecm complete harness just not the electric tach/speedometer that's in the car but assuming I cant get the tach wat do I need to do to make it work with the harness I have

Jae992

just found out the motor is a 350 SGI block #638

five7kid

iTrader: (14)

No. I was actually going to comment on that statement. '87 2.8 had electronic fuel injection, and therefore an electric pump in the tank. However, since it had a V8 swapped into it before you got the car, all bets are off regarding what's in the tank now.

Jae992

i have a very clean body i want to make the motor look as best as possible and since i have a 350 im getting the headers and the heads polished can u link me to a carb conversion thread

Jae992

Hey pocket lets say i fix the harness i cut its now back in good condition where whould i go from there?

Pocket

iTrader: (24)

Find the additonal info thread in the LS1 swap sticky. It has C100/C207 pinouts for every year 3rd gen. Compare the 92 to 87 and repin the 92 to match your 87

Jae992

can send me a write up on the colors and wat they are for like
pink ignition side note my pink has a black stripe is it the same?
purple starter
blk/white ground
tan oil gauge thats as far i can see from looking thro the threads ill keep looking tho

Jae992

ok i get it now thanks pocket but i need your help and as im looking around ur a wiring expect so to say.....
so if you look at my pictures u see the 87 shell thick pink and black wire its for idle speed control on a v8 vin G or vin H i had a v6 so im confused i looked at the 91 wiring and pink black is engine emmisions control and idle control isnt on the list under any color wire what is this wire for is it for idle speed control if so whats the counter wire on the 91 engine also my 87 doesnt have a pink like on the schematics so my power distribution to tpi efi mpfi well i guess i just answer my own question it did but on the other part of the harness guess i wouldnt need it for a tbi motor any how well thats my only question left that i have oh wait for 91 motor wire G8 BRN would i connect it with purple charging system and also G4 GRY on the 91 motor fuel control does that matter at all ? E4 purple on motor spped control C7 BLK/WhT engine on motor ok now im done haha sorry thanks pocket your help is very appreciated

Jae992

im still waiting on a reply I cant make any progress