I know this 4l60e does not have a tv cable so can yall explain to me what it is and the best way to take it off? here is all the rpo codes to my donar car.
http://www.compnine.com/vid.php?vin=2g2fv22p4s2208678

I will have a lot more questions just please bare with me. Thanks.

 

Cruise Control.

 

Thanks you for the fast response man. I have read that it's ok to use the lt1 fuel tank is this correct? Another question i have heard mixed opinions lt1 manifolds working on a 89 third gen. Is this myth true? Other then this, I'm ready to pull the motor and trans out, and begin the dreaded wiring process

 

LT1 tank wont fit, the neck is different than 3rd gen and since the tank is steel, its a little harder to trim. 99-02 Fbodys used plastic tanks with removable necks that can be trimmed down to fit along with a few other mods

Manifolds most likely wont fit but why bother? 1 5/8" or larger headers fit no problem and there are tons of options available for 3rd gen SBCs. They're nowhere near as expensive as LSx headers

Taking the dread out of wiring can be arranged

 

Thanks for the info will the sending unit fit in my 89 fuel tank? Another question is the donor car came with 2.73 gears, will the 4l60e recognize the 3.23 gears and have the same shift points without any problems?

 

4th gen senders dont fit 3rd gen tanks

Gear difference will cause your speedo to be off. The trans doesnt care what gearing you have

 

Thanks pocket. So a stock l98 fuel pump work for an lt1? And about the wiring harness can you make it a little easier for me man?

 

It will. If you're already in there, Id stick a 255 in, but the L98 pump will work

TPI and LT1's operate at the same pressure and have similar flow rates

 

Pockets harnesses are highly recommended by many people on this site, including myself.

 

That's what i read The guy's a genius.

 

So i got the wiring harness and lt1 and 4l60e pulled, really easy so far.


Now i'm pulling the 305tbi wiring harness, i started from the passenger kick panel unhooked the pcu pulled the wires through the fender traced it all the way back to the driver side by the brake booster, where the two alen screws hold what looks to be a fuse box in place? Do i really have to take all of this **** out lights and all just to get the harness out in one piece?

 

1/4" bolt dead in the center of the C100, unscrew it until it starts skipping then pull the connector off the firewall. The bolt wont come out. Pull the fingers back and split the engine and light halves of the C100. Light half isnt touched for the swap

 

Thanks man! Can't believe i missed that

 

It's been a while since i posted but i got the engine bay painted, dropped the motor and transmission right in. I pulled the fuel tank today and i couldn't help but notice that the lt1 tank looks just like my 305 tbi tank, other then the sending unit. I have done a lot of research but cant find out why the LT1 tank wont work? Can i get this 95 LT1 fuel tank and fuel lines to fit in my 89 RS Camaro? It is in way better shape then my stock tbi tank.


I will be getting new front springs soon. I Didn't know the LT1 was that much lighter then the 305.



The LT1 manifolds will have to work for now.

 

The filler neck is about 2" too long or so. And unlike the LS tank, its not removable.

 

Yes good point i noticed that today, I was thinking of cutting a piece out of the neck and using rubber hose like Chevrolet did on the trucks from 88-93?

 

I dont see how that could be a problem. Its the same way on my Dodge work truck too.

As for the springs, they will settle quite a bit once you drive it a few miles.

 

Thanks for all the help man, i guess i will get to work on it early tomorrow. All the ls1s around here its good to see an ltx owner. Btw you Camaro is gorgeous .

 

thanks for the kind words man

 

So the past couple of days i have been at this wiring harness merging the two together.

Using these diagrams.

http://berlinetta.info/C100.htm

http://www.austinthirdgen.org/mkport..._1989_C100.gif

http://shbox.com/1/harness.htm

https://www.thirdgen.org/forums/ltx-...formation.html

http://shbox.com/1/harness_connector_faces.htm

https://www.thirdgen.org/forums/atta...fo-1989207.gif


I have read hundreds upon hundreds of threads about this swap. But i am still scratching my head, and rubbing my neck trying to grasp this wiring. please help.

C207 89 camaro
https://www.thirdgen.org/forums/atta...fo-1989207.gif

C100 89 camaro bulkhead
http://www.austinthirdgen.org/mkport..._1989_C100.gif

A4 red wire power distribution ignition switch. It goes to constant 12v

D6 Black/white wire Tach to pin d "white" Tach on c230 lt1 harness

b4 purple wire to starter solenoid

E5 Tan wire Oil pressure signal wire to pin b "tan" on c220 lt1 harness

F5 Dk Green wire coolant temp signal wire to pin k "dark green" on c220 lt1 harness

G5 Red wire Power dist to constant 12v.

E7 Purple wire Transmission converter clutch (All engine) ? Where does this wire go?

G4 Tan/wht Fuel control (All engine) Do i need this?
______________________________________________________________________________

C100 lt1 diagram 10 piN connector
http://shbox.com/1/harness_connector_faces.htm

[A] [b] [C] [D] [E]
[F] [G] [H] [J] [K]

Cavity / Wire color / Description

A. pink wire, Power feed from injector fuse #9. Goes to c207 (B) pnk wire Fuel injectors. is this right?
B. DK green/ white, AC compressor relay control. NA
C. DK green, AC compressor clutch solenoid feed. NA
D. Orange, power feed from pcm fuse #8 to pcm. Where does this wire go?
E. Brown, Air pump relay control. NA
F. Brown, power feed from fans/actuators fuse #6. NA
G. Pink, power feed from ignition fuse #11. Do i just hook up a 12v power when key is on?
H. DK blue, Coolant fan relay control (2&3) NA
J. Dk green, coolant fan relay control. NA
K. Pink, Power feed from injector fuse #10, C207 G (pnk/black) Fuel injectors. is this right?

C105 7 pin connector
http://shbox.com/1/harness_connector_faces.htm

[A] [b] [C] [D]
[E] [F] [G]

A. Orange/black wire Traction control system spark retard. NA
B. Pink wire power feed from fuse #10 ???
C. Tan/black wire Traction control system throttle position. NA
D. DK Green wire Cruise control signal disengage. Na
E. Tan wire Serial data signal. ????
F. White wire Cruise control indicator lamp output. NA
G. LT blue wire Traction control active NA

C210 Black 4 pin connector lt1 black
http://shbox.com/1/harness_connector_faces.htm

[A] [b] [C] [D]

A. purple wire - Theft deterrent relay to starter solenoid feed- I have this hooked up to the starter solenoid.
B black and white - Ground feed to fuel pump relay- do i just make a ground to the body?
C NA
D Grey - feed from fuel pump and fuel pump relay to prime connector? not sure where this goes.


C220 White 10 Pin connector lt1
http://shbox.com/1/harness_connector_faces.htm


[K] [J] [H] [G] [F]
[A] [b] [C] [D] [E]


A. red wire, Generator feed to instrument cluster. I can find this wire in the diagram for 88 but not 89?
B. Tan Wire, oil pressure feed to instrument cluster. I have this hooked up to E5 tan wire "engine oil pressure instrument panel" on c100
C. Brown, Oil level feed to instrument cluster. NA
F. Tan, Serial data signal (VIN S only) see C105 for Vin P. I have Vin P and It's serial data signal? Do i use this?
G. DK GReen/white, Vehicle speed signal. This wire hooks up to the speedo?
H. DK blue/white, automatic performance switch signal. NA
J. DK green/white, Fuel pump relay control, I have this wire hooked up to the DK green/white wire on the fuel pump relay.
K. DK GReen, Coolent temperature feed to instrument cluster. I have this hooked up to F5 "coolant temperature instu panal" in c100 bulkhead connector.


C230 Blue 10 pin connector
http://shbox.com/1/harness_connector_faces.htm

------
[K] [J] [H] [G] [F]
[A] [b] [C] [D] [E]


A. LT Blue, Grey (automatic performance switch indicator control. NA
B. Brown/White Wire to check engine light on instrument cluster. There are 3 wires that have ignition, service engine soon, and tachometer. in the c207 /brn/wht, E/wht/blk, F/pnk/blk?
C White/Black, Diagnostic request signal, I have this wire hooked up to c207 (E) wht/black
D. White Wire, tachometer signal to instrument cluster. I have this wire hooked up to D6 wht, Tachometer. on the C100 bulkhead connector.
E. Dk Blue, Theft deterrent fuel enable feed. NA
F. DK green/white Ac request signal. NA
G. Pink, Power feed from pcm ignition fuse #5. I have this wire hooked up to F4 pnk wire, ignition electronic spark timing. please correct me if i'm wrong???
H. Light Blue/Black, Automatic TCC switched power feed. Do i hook this up to c207 tan/blk engine data sensors and TCC??
J. Orange black, Automatic park neutral feed transmission position switch???
K. Purple, Automatic torque converter clutch control. NA

 

hey man i was in the same place as you are right now with this wiring crap, I will highly recommend Pocket.
I just got mine back from him and im putting an lt1 in my 91, he was very helpful with all my questions, and when i got my harness back I could not believe how amazing it looked, this guy is the one you want doing your harness i can promise you that.

 

Yeah man pocket is the man for wiring around here . I just wanted to do it myself, i'm pretty much done with my harness and the Lt1s alive!!! Thanks to pockets awesome step by step how to. Once you grasp the wiring diagrams it's not that hard It's like wiring up a big *** stereo.

 

congrats!!

 

Thanks man! First thing i get is headers and a Y pipe This stock ugly manifold $hit has to go. Then Lt4 cam and ported heads lots of crap to list just have to get the ****ing cash for it. Anyway i have 275Hp at the crank and that's better then a POS TBI 305 any day.

 

your not going to believe it but i got a the 95 Formula Cat back 80 series Flowmaster exhaust to bolt straight up to my 89 Camaro lol "The golden year". This is with cat deleted but it bolted up?! even the exhaust hanger fits in place. For a 1000$ this has definatly been a 23 year old poor mans build lol. I love it!

 

Well two years down the road i can say that the LT1 runs better then ever, no mods done other then a full tune up top notch oil, and a vacuum leak fix and nothing but premium gas. Engine doesn't leak a drop of oil and still makes me happy. I will be updating this thread when i get the M6 to swap.

But there is always a catch i can't go wot with this 4l60e it's 2-3 clutches are shot i think, i say that because if i put the hammer down WOT in 3rd it will kick into (N) and hit the rev limiter hard. but if i ease into it 3/4 of throttle it works ok. I only drive it on the weekends to blast down palm springs, or go to the lake with my brother. The car is limited to fun time only with the occaional drive to work on a clear day otherwise garage kept. This is why I Am so ready for a manual it has got to the point i'm dreaming about shifting gears. That's Me!

 

Of course that was a closed road not open to the public. Sounds great.

 

Oh yeah out hear it's a strait drag, and thanks.

 

Hi guys so Im new to this forum and have been in the process of doing a motor swap in my 91 c1500. i recently had a 4.3 l v6 tbi and have upgraded to a 5.7 l tpi, the main problem i have run into is the bulk connections for the c100's. t\The one from the truck is smaller than the tpi harness which came out of either an 88 model z28 or an iroc. is there any way i can salvage the tpi harness and use the bulk head from the truck or would i have to completely get a new harness? I have the ecm which pertains to the tpi harness too which i would like to use instead of buying another one.

 

Been a long time. But i still have the LT