Thanks! Any one else have the 207 or whatever images pocket had posted?

 

Pocket, not sure if you did something, but all of those images are back up, THANKS!

 

It's photobucket. Bandwidth counter resets mid-month

 

good to know. Thamks!

 

Hi finishing up my lt1 w/ 4l60 e swap. With painless 60502 harness. On my 1989 T A.
Just a couple thing not sure about.
I need to get my speedo working read on a 3gen post that I need to connect VSS out to the green wire on the vss buffer.
Finally the last thing I need to get my torque convertor lock up working
Open to any suggestion.
Thank you Michael

 

Connect the speedo wire from the PCM to c207 pin k and connect pins c&f on the buffer box together

Tcc is part of the 4L60E wiring, there is nothing extra to connect on that circuit. The p/neutral wire needs to be connected at the c207, but I forget the exact pin

 

I'm posting this to update the earlier C207 Post from 2009.

1982 C207


PIN Color From / To (Notes)
A Brn ALDL / ECM (AIR control)
B
C Wht Light Driver / ECM
D Tan Oil Pres / Gage (L4)
E Wht/Blk ALDL / ECM (test)
F Pnk/Blk IGN fuse / EGR-ECM
G Pnk/Blk Gge fuse / AC Comp Relay
H Tan/Blk ALDL / TCC-ECM
J
K* Brn ECM / VSS
K* Ppl Brake / TCC ( V6 )
L Org/Blk ECM / P/N switch ( V6 )
M Blk/Wht VSS,P/N switch / Grd
N Org/Blk ECM / P/N switch ( V8 )
P* Ppl Brake / TCC ( V8 )
P* Brn ECM / VSS




1984 C207


PIN Color From / To (Notes)
A Brn ALDL / ECM (AIR control)
B Dk Blue BU Fuse / Back Up Switch ( T5 only )
C Wht/Grn Light Driver / ECM
D Tan Oil Pres / Gauge (L4)
E Wht/Blk ALDL / ECM (test)
F Pnk/Blk IGN fuse / EGR-ECM
G Lt Green BU switch / Rev Lights ( T5 Only )
H Tan/Blk ALDL / TCC-ECM
J Org ALDL / ECM ( L4)
K Brn ECM / VSS
L Tan/Wht Fuel Relay / Fuel Pump ( L4 )
M Blk/Wht VSS,P/N switch / Grd
N Org/Blk ECM / P/N switch
P Ppl Brake / TCC ( V8 )
R Ppl Crk Fuse / EFI (L4)


1985 C207

PIN Color From / To (Notes)
A Brn ALDL (pin C) / ECM (AIR control)
B* Dk Blue BU Fuse / Back Up Switch ( V8 T5 )
B* Red ALDL / Fuel Relay ( V6 - TPI )
B* Org/Blk FP FUSE / Fuel Relay ( L4 )
C* Brn/Wht ECM / CE Light ( L4- V6 - TPI )
C* Wht/Grn Light Driver / ECM ( LG4 & L69 )
D* Blk/Org FP/INJ fuse / Fuel Relay ( L69 )
D* Tan/Wht Fuel Relay / Fuel Pump ( V6 )
D* Lt Blue Fuel Relay / Fuel Pump ( TPI )
D* Tan Oil Pr Sensor / Oil Pr Gauge ( L4 )
E Wht/Blk ALDL / ECM (test)
F Pnk/Blk IGN fuse / EGR-ECM
G* Dk Blue BU Fuse / Back Up Switch ( V8 T5 )
G* Pnk/Blk Gage Fuse / MAF Relay ( V6)
G* Pnk/Blk Gage Fuse / Burn Off Relay ( TPI )
G* Pnk/Blk Gage Fuse / Air Cond Relay ( L4 )
H Tan/Blk ALDL / TCC-ECM
J* Ppl Starter / Fuel Relay ( L69 )
J* Org ALDL / ECM ( L4 - TPI )
K Brn ECM / VSS
L Tan/Wht Fuel Relay / Fuel Pump ( L4 - L69 )
M Blk/Wht VSS,P/N switch / Grd
N Org/Blk ECM / P/N switch
P Ppl Brake / TCC
R Ppl/Wht Crank Fuse / Cold Start-ECM ( V6-L4 )


Plug C221

A Pnk/Blk Inj2 Fuse / Even Fuel Injectors
B Lt Green Back Up Switch / BU Lights ( V6-T5 )
C Brn Fuel Pump-Fan Fuse / Fan Relay ( V6 - TPI )
D Pnk/Blk Inj1 Fuse / Odd Fuel Injectors
E
F Dk Blue Back Up Fuse / Back Up Switch ( V6-T5 )



1986 1987 C207 ( TPI )

PIN Color From / To (Notes)
A Brn ALDL / ECM (AIR control)
B Red ALDL / Fuel Relay ( TPI )
C Brn/Wht ECM / CE Light ( TPI )
D Tan/Wht Fuel Relay / Fuel Pump ( TPI )
E Wht/Blk ALDL / ECM (test)
F Pnk/Blk IGN fuse / EGR-ECM
G Pnk/Blk Gage Fuse / Burn Off Relay ( TPI )
H Tan/Blk ALDL / TCC-ECM
J Org ALDL / ECM ( TPI )
K Brn ECM / Speed Buffer
L Tan/Wht Fuel Relay / Fuel Pump ( L69 )
M Blk/Wht VSS,P/N switch / Grd
N Org/Blk ECM / P/N switch
P Ppl Brake / TCC
R Ppl/Wht Crank Fuse / Cold Start-ECM ( V6 )

Plug C221

A Pnk/Blk Inj2 Fuse / Even Fuel Injectors
B Lt Green Back Up Switch / BU Lights ( V6-T5 )
C Brn Fuel Pump-Fan Fuse / Fan Relay ( V6 - TPI )
D Pnk/Blk Inj1 Fuse / Odd Fuel Injectors
E
F Dk Blue Back Up Fuse / Back Up Switch ( V6-T5 )


1988 C207
** 89 Similar,... Add VATS !?

PIN Color From / To (Notes)
A Brn ALDL (pin C) / ECM (AIR control)
B* Pnk (Red) INJ1 TBI (TBI)
B* Pnk/Blk (Pink) INJ1 (V6)
B* Pnk/Blk (Black) INJ1 (TPI)
C* Brn/Wht ECM / CE Light
D* Brown (Tan/Wht ) Fan
E Wht/Blk ALDL (pin B) / ECM (test)
F Pnk/Blk IGN fuse / ECM
G* Pnk/Blk (White) INJ2 TBI (TBI)
G* Pnk/Blk (Pnk/Black) INJ2 / (V6)
G* Pnk/Blk (Black) INJ2 (TPI)
H Tan/Blk ALDL / TCC-ECM (auto)
H Tan/Blk ALDL / Upshift (stick)
J* Org ALDL (pin E) / ECM
K Brn/Yellow (brown) ECM / Buffer
L
M Blk/Wht VSS,P/N switch / Grd
N Org/Blk ECM / P/N switch
P
R Ppl/Wht Crank Fuse / Cold Start-ECM


1990 - 1992 C207

PIN Color From / To (Notes)
A Brown ( TBI )
B* Pnk (Red) INJ1 TBI (TBI)
B* Pnk/Blk INJ1 (V6 / TPI)
C Brn/Wht ECM / CE Light
D Grey Speed ECM to Cluster (Not with TBI)
E Wht/Blk ALDL (pin B) / ECM (test)
F Pnk/Blk ECM fuse / ECM
G* Pink/Blk (white) INJ2 TBI (TBI)
G* Pnk/Blk (INJ2 V6 TPI)
H* Tan/Blk ALDL / TCC-ECM (auto)
H* Tan/Blk ALDL / Upshift (stick)
J Org ALDL (pin E) / ECM
K Brown ECM / Buffer (Only TBI)
L Drk Blue Vats to ECM
M Org Interior Lights
N Org/Blk ECM / P/N switch
P Red Speed Sensor (Not with TBI)
R Ppl/Wht Crank Fuse / Cold Start-(only TBI)

On several of the diagrams the wire color changed from one side of the plug to the other ( dash harness vs. ECM harness.) In this case I used the DASH harness color ( some Engine harness side wire colors in ( ) ) . I did not take the time to pull out each of the dash harnesses - so It's possble that I missed a wire or 2. If anyone spots a problem just let me know and I'll edit.



Hope this helps !

 

Sweet, thanks

 

[QUOTE=Pocket;4341125]Some more diagrams

Engine schematics
LS1

/0411SBC.jpg[/IMG]

I found a difference between this diagram and the wiring schematic on LT1swap.com

TPS wiring pin numbers are different

As shown above:
Black B60
Grey B8
Dark Blue R24

LT1swap.com:
Black B54
Grey B46
Dark Blue R24

Anybody know which one is right?

 

Fbody vs truck pinouts change slightly. FWIW, mixing and matching low ref/5v signals or even tying all into a single pin is acceptable to an extent. The red/blue trucks used the exact same PCMs as 99-02 Fbodys

Compare
http://www.lt1swap.com/2001_PCM_CONN_PINOUT.htm
http://www.lt1swap.com/99-02_vortec_pcm.htm
http://www.lt1swap.com/2004vortec_pcm.htm

Heres a green/blue GTO pinout that follows the Fbody pinout closely
http://www.lt1swap.com/2004gto_pcm_pinouts.htm

 

Pocket THANK YOU so much for all your info I am installing 86 vette MAF engine in my 91 RS TBI car and this is so valuable to me. Is there any other details about that C100 or other things I may need to know not covered in in this thread that you might be aware of between years of this swap. I know it won't be easy But I am retired old guy and have time LOL. Thanks Again Mike

 

Subscribe

 

So quick question. I been reading through various threads on various site to get a grasp of my wiring before I do my swap. It'll probably be a 5.3 . Anyways car was a tpi. Then carb. Several years ago I believe I ripped out my c207 , as it was the passenger side harness , correct? So do I need to get one from another camaro. Or I make my own harness with new connectors?

 

Can anyone help me with my current situation. LS1/4L60E swap into my 92 camaro. The motor is from a 04 corvette. I have the stock wire harness. My question is, Can I use the stock harness to get the motor running, or do I need to go out and purchase a stand alone drive by wire harness?

 

You can use the vette harness. You can either modify it to fut directly to your C100 or route it another way. Lots of ways to do this. I would spend some time reading the wiring stickies before you tear up the vette harness.

 

really good info in here, thanks for putting it together.

 

I'm working on a 90 with a 3.1 your posts have been very helpful. I just wanted to let anyone who needs to know on mine pin a6 is blank and pin a7 is the emissions common. My under hood light is not on the c207 connector it's pin g7 on the c100.

 

I have a 1989 firebird and i am using the 2001 LS1 computer and a 4L60 transmission, do I remove the VSS Buffer box and connect pin F and C ? I was thinking that it stayed and I just tapped into the wire that came with my PSI swap harness for the speedo

 

Connecting pins C&F is done to complete the path from ECU to C207, to skip buffer box, to cluster. Factory connector points, no new wires under the dash
You can skip that and tap directly into the speedo wire anywhere between the buffer box connector and cluster. It becomes more difficult to troubleshoot later though

 

Thank you so much, would the tach need to be wired under the cluster or can it be tapped into at the c207

 

It's in the C100 near the booster from the factory

Of course you can tap in under the dash if you wish

 

Doing a 5.3/4l60e swap in a thirdgen. Got the kit from Hawks and it has a upgraded racetronix 255 fuel pump and a relay just for the fuel pump, plugs into the factory bulkhead behind the seat. Needing to know how to wire in the rear mounted fuel pump relay to be activated by the key, it belive it's suppose to be activated by the factory fuel pump relay(has been removed). What is the best way to wire in the racetronix "hot wire" kit so the pumps activated by the key?

 

Your engine ECM has a +12V relay driver for fuel pump. Tie that into the TAN/WHT wire on either side of C100 connector (engine bay or under the dash) that originally powered the fuel pump, and that will trigger the Racetronix fuel pump relay.

 

I am using the same harness and pump along with a PSI stand alone harness. My PSI harness has a relay setup built into to it for the fuel pump. My question is with the racetronic do I skip the psi setup and wire to old C100 wire

 

PSI also sent me this

 

Your access point to operate the Racetronix relay is that TAN/WHT wire in the C100. You can run it with the PSI relay or run it directly from ECM.

 

Would I be able to connect any 12v key on cranking power to the Tan/Wht wire? There is a wire that i am using from the 207 plug that is 12v key on power for my PSI 12V cranking power
Thanks Rich

 

The Tan with White Tracer Wire (from original Fuel Pump Circuit) should be found from the C207 Connector, under the dash-board...
Use it as the "Trigger Circuit" for your aftermarket Fuel Pump Wiring, and connect it to the #86 Terminal of the Relay you have.

 

It's in C100.

Rich, following up on the PM you sent me, that graphic is an incomplete wiring schematic. It's meant to tell you that the harness comes with two unterminated wires that you need to land in your car for the pump to operate. Those wires are the "switched side" of the relay. In your case with Racetronix Hotwire harness, Terminal 30 gets hooked up somewhere in your main power distribution. You can use the original ORG wire from your stock fuel pump relay in engine bay. It's already fused and labeled sensibly in the fuse box. Terminal 87 will be spliced into the original TAN/WHT wire.

Terminals 85 and 86 are the field coil circuit of the relay, and even though not shown in that diagram, I am almost certain it is pre-wired in your harness to the ECM to control fuel pump. Look for those wires at the relay to confirm.

 

Thank You so much for your help!!! I have removed the relay that was on the firewall, I have enough wire still coming out of the c100 on all the unused wires that i cut off. Can this orange wire connect right to the tan/wht wire at the c100

 

I'm not sure what you guys discussed via PM...

But No, do not connect the Orange Power Wire to the Tan with White Tracer Positive Trigger Wire.

 

ORG is "always hot", so splicing directly into the TAN/WHT wire will make fuel pump run continuously.
It's perfectly fine to use through a relay though (just like stock).

 

there is a relay in the racetronix harness close to the fuel tank, are you saying to run the orange wire directly to the relay? I was thinking that this relay was designed to work with the original car wiring. I did remove the original relay so i am sure that changes the trigger.

 

All right, I see this was worded poorly in a confusing way.

"In your case with Racetronix Hotwire harness, the PSI fuel pump relay Terminal 30 gets hooked up somewhere in your main power distribution. You can use the original ORG wire from your stock fuel pump relay in engine bay."

(The Racetronix terminal 30 of course has its own 10 AWG size wire that goes to the battery.)