dabomb6608

iTrader: (3)

I have a 86 TA that i am in the process of putting a 400 TPI motor in. Bought the car without a motor. It was originally a LG4 motor and i know have the 400 in and am getting the wiring finished up. The harness i put in it is from a 86 as well for the TPI. I did this hoping it would require the least amount of mods in the long run.

I was trying to figure out how i was going to wire up the fuses for the injectors and fan on the C221 connector when i randomly decided to use the test light on the C207 connector since i read that i think terminal D is for the fuel pump( which i need to wire up as well). With the key in the off position, the C207 connector from the dash has 12v at terminals C, D, G, F, J, M and P.

Is this right? With the years between the harnesses being the same i wasnt worried to much about the C207 connectors not matching up until i did this. Now im kindve worried. I wouldnt think that those should have power going to them when the car is off.

dabomb6608

iTrader: (3)

Anyone? Im hoping to get some work in on this car tomorrow and wanted to get the wiring sorted out completely.

86Z

iTrader: (4)

i did this swap a long time ago, brain fart... what is the c207 connector? i ran 12v from the fuse block to a mini block for the injector power etc..

dabomb6608

iTrader: (3)

The C221 is the one your talking about with the injector power supply and fan relay power supply. The C207 is the other interior harness connector that plugs into the engine harness.

1ADan

iTrader: (4)

i've always used this page for help on pinouts
http://www.austinthirdgen.org/index.php?pid=19

some years are better covered than others, but should be a good start.

dabomb6608

iTrader: (3)

Ive looked at that page before, unfortunately it doesnt have the 86 harness but that is fine. The main concern i have is more or less, why those terminals on the dash side have 12v even when the car is off. Because when i compare the colors to the diagram on that site some of them i wouldnt necessarly think should have 12v when the car is off. Like terminal D, on the 85 it was for the fuel pump to fuel pump relay. On the 87 it is listed as for the cooling fan. Either one of those i would assume shouldnt have power 24/7. Unless im wrong on my assumption.

dabomb6608

iTrader: (3)

By the way thanks for the replys so far guys. Really appreciate it.

dabomb6608

iTrader: (3)

Ok, after going through all the diagrams on this site for the 86 TPI(Vin code F) i now have a typed up a list of most of the C207 pinouts with the color wires and terminals. It took awhile but i think it was worth it since i cant find one anywhere else. I mightve missed some since there are some empty slots but its the main bulk of them. I will try to compare what i have typed to what is in the car and go from there.
Does anyone have a yes or no on if those terminals i have listed up top should have 12v when the car is off? Thanks again.

86Z

iTrader: (4)

okay your talking the 2 connectors under the dash to the ecm harness, that needs to be re wired completely, and needs to have +12v for injectors, also there is a pin you need to move in the aldl connector if i remember correctly... thanks to Trickster....

here is the connector C207 pin-out for the VIN H L4. I will get you the pin-out for the TPI tomorrow and yes they are very different.

L4 pin-out Vin H C207

Pin “A”= brown wire from pin “B” connector “C2" of “ECM” to pin “C” of “ALDL”
Pin “B” = light green wire from pin “D” of “gear selector switch to pin “B” of “Back-up” switch
Pin “C” = white/dark green wire from pin “D” of “Light Driver Module” to pin “C” of “ECM”
Pin “D” = orange wire from pin “E” of fuel pump relay, black/orange wire to “FP/INJ 2" fuse.
Pin “E” = NOT USED
Pin “F” = pink/black wire from “ECM-IGN” fuse to “M/C” solenoid and emissions.
Pin “G” = dark blue wire from “TURN B/U” fuse to pin “A” of “Back-up switch.
Pin “H” = tan/black wire from pin “14" connector “C2" of instrument cluster (non-digital) or pin “B” connector “C1" (digital) to pin “P” connector “C2" of “ECM’
Pin “J” = tan/white wire from pin “C” of fuel pump relay to “Crank Fuse”.
Pin “K” = brown wire from pin “F”of “VSS” buffer (digital cluster) or pin “A” of “Inst. Cluster” (gages) to pin “16" connector “C1" of “ECM”
Pin “L” = brown wire from fuel pump to connector, tan/white wire to pin “A” of relay.
Pin “M” = black/white wire from ground to pin “5" for VSS buffer on connector “C2" for indicator gage cluster or pin “A” for VSS buffer on connector “C2" for digital gage cluster. (Ground is rear of right cylinder head)
Pin “N” = NOT USED
Pin “P” = purple wire from pin “A” connector “C1" of “Brake” switch to pin “A” of TCC solenoid switch on Automatic transmission 4 speed.
Pin “R” = orange/black wire from pin “B” of “Gear selector” switch (automatic only) to pin “H” connector “C2" of “ECM” or from “CH-FAN” fuse to pin “A” of “AUX. Coolant Fan Relay” (manuals only)

here is the TPI pin-out for connector C207 for the 87 firebird. I do not have the 89 firebird manual at the moment so I can't give you that exact pin-out right now. With the 89 wire harness and pin-outs there are some systems that are not in the 87 car.

L98 pin-out VIN F & 8

Pin “A” = brown wire from ECM pin “A2" connector “C1" to pin “C” of ALDL
Pin “B” = orange wire from pin “D” of fuel pump relay to C207 and then red wire to pin “G” of “ALDL”
Pin “C” = brown/white wire from pin “13" connector “C2" (ses light) of inst. Cluster to pin “A5" connector “C1" of ECM
Pin “D” = tan/white wire from pin “B2" of ECM connector “C1" to fuel pump & pin “A” of fuel pump relay
Pin “E” = white/black wire from pin “B” of “ALDL” to pin “A9" connector “C1" of ECM
Pin “F” = pink/black wire from “ECM-IGN” fuse to pin “A6" connector C1 of ECM & pin “B” of ESC module
Pin “G” = pink/black wire from “GAGES fuse to emissions
Pin “H” = tan/black wire from TCC solenoid to pin “F” of ALDL (automatics only)
Pin “J” = orange wire from ECM pin “A8" connector “C1" to pin “E” & “M” of ALDL
Pin “K” =brown wire from ECM pin “A10" connector “C1" to pin “F” of VSS buffer
Pin “L” = NOT USED
Pin “M” = black/white wire ground to back of each cylinder head
Pin “N” = orange/black wire from ECM pin “B10" connector “C1" to pin “B” og gear selector switch (auto only)
Pin “P” = purple wire from TCC solenoid to brake switch (automatics only)
Pin “R” = purple/white wire from Crank fuse to C207, then purple wire to pin “2" of cold start switch and purple/white wire from splice to pin “2" of cold start injector.


you'll need to match the 2 of them up

dabomb6608

iTrader: (3)

Is the 89 a typo? I need the 86 pinout. From going through and looking at every diagram on http://92b4crs.tripod.com/86wiring/86wiringindex.html to find all the wires that are in the C207 connector, there are several differences it appears between the 87 car and the 85 car listed on austinthirdgen.org.

C207
Term. A Brn to ALCL Term. C on TPI Cars
Term. B Red/Blk ALCL side: Orn Relay Side(Fuel Pump)
Term. C Wht/Dk Grn (LG4)
Term. D Brn Pump Side: Tan/wht relay side(fuel pump)
Term. E Wht/blk (LG4 only goes to ALCL Term. B)
Term. F Pnk/Blk
Term. G Pnk/Blk Fuse Block Side:Blk Pnk
Term. H Tan/Blk
Term. K Brn
Term. M Blk/Wht
Term. N Org/Blk
Term. P Ppl
Term. R Ppl/White Fuse Block Side:Ppl Cold Start inj side


So far i have decided that Terminal C on C221(the one for the inj. 12v and cooling fan relay 12v) needs to have the brown wire from G7 on C100 moved to the brn/wht(the one for the fan) wire on C221.
I also need to test the Brn/Wht wire on term. D on the tpi harness to make sure it is the same wire on the fuel pump relay side. Because from what im seeing on the diagrams that will be used to power my fuel pump.

dabomb6608

iTrader: (3)

After comparing what 86Z posted,
L4 pin-out Vin H C207

Pin “A”= brown wire from pin “B” connector “C2" of “ECM” to pin “C” of “ALDL”
Pin “B” = light green wire from pin “D” of “gear selector switch to pin “B” of “Back-up” switch
Pin “C” = white/dark green wire from pin “D” of “Light Driver Module” to pin “C” of “ECM”
Pin “D” = orange wire from pin “E” of fuel pump relay, black/orange wire to “FP/INJ 2" fuse.
Pin “E” = NOT USED
Pin “F” = pink/black wire from “ECM-IGN” fuse to “M/C” solenoid and emissions.
Pin “G” = dark blue wire from “TURN B/U” fuse to pin “A” of “Back-up switch.
Pin “H” = tan/black wire from pin “14" connector “C2" of instrument cluster (non-digital) or pin “B” connector “C1" (digital) to pin “P” connector “C2" of “ECM’
Pin “J” = tan/white wire from pin “C” of fuel pump relay to “Crank Fuse”.
Pin “K” = brown wire from pin “F”of “VSS” buffer (digital cluster) or pin “A” of “Inst. Cluster” (gages) to pin “16" connector “C1" of “ECM”
Pin “L” = brown wire from fuel pump to connector, tan/white wire to pin “A” of relay.
Pin “M” = black/white wire from ground to pin “5" for VSS buffer on connector “C2" for indicator gage cluster or pin “A” for VSS buffer on connector “C2" for digital gage cluster. (Ground is rear of right cylinder head)
Pin “N” = NOT USED
Pin “P” = purple wire from pin “A” connector “C1" of “Brake” switch to pin “A” of TCC solenoid switch on Automatic transmission 4 speed.
Pin “R” = orange/black wire from pin “B” of “Gear selector” switch (automatic only) to pin “H” connector “C2" of “ECM” or from “CH-FAN” fuse to pin “A” of “AUX. Coolant Fan Relay” (manuals only)

to the dash harness side of connector C207. It looks like there might be some incorrect info or something with the above info. Because on my car, terminals D, E, J, L, N, and R do not follow what he has posted for the LG4 Vin H harness. It says that E and N are not used, but yet terminal E has a Wht/Blk wire on mine and terminal N has a Org/Blk wire. Also, my car didnt have a factory fuel pump even though what he posted is saying there should be wires going to the fuel pump relay on the LG4 in my car.