94-96 Wiring Swap-obd1.5--obdii

[d.o.h.c]

I am currently doing my swap on my 94 and need some help from the guys that have done this swap. Shane(redzmonte) has helped me out a ton, but since he has a 95 the wiring is a little different. I have the Gm book with all the wires from teh C100 connector, but there are a few that are different from 94-95-96. Please help me if you can. Also on my 94 I have a two wire ALT, black and brown, on the 95-96 its a one wire , red. Anyone know why this was changed and what I need to do to make it work. Both ALT's are the same.

Here is what I have
I will post soon

[d.o.h.c]

94 Z34

Pst/color/ Description

A1- Blank- Na
A2- Gry- Fuel Pump
A3- Pnk- Ignition Switch To Fuse Block
B1- Red- B+ From #1 Component Center
B2- Blank- Na
B3- Yel- Ignition Switch Start Feed To Transaxel Range Switch
C1- Blank- Na
C2- Blank- Na
C3- Lt Grn- A/c Request
C4- Lt Grn- Back Up Light Feed
D1- Blank- Na
D2- Blank- Na
D3- Yel/blk- Low Coolant
D4- Wht- Tach Output
D5- Lt Grn/blk- Park/neutral Switch Output To Rear Compart Release Sw Itch
E1- Blank- Na
E2- Brn/wht- Switch Ground For Charge Indicator
F1- Blank- Na
F2- Tan- Oil Psi Indicator
G1- Org/blk- Chime Module Ground For Automatic Door Locks
G2- Dk Grn- Coolant Temp Gauge
H1- Blank- Na
H2- Blank- Na
H3- Brn/wht- Pcm “mil”
H4- Dk Grn- Pcm “vss”
H5- Wht- Cruise “engaged”
J1- Wht/blk- (vin T)- Pcm Data Link
J2- Blank- Na
J3- Ppl- Brake Switch Feed For Auto Trannys
J4- Tan- (vin X) Orn (vin T)- Data Signal “uart”
K1 -red- B+from #1 Fuse Block And Ignition Switch
K2 -orn- (vin X)- Ign 3 Feed To Underhood Ele Center #1 (vint T)- Ignition Sw Itch “ign 1” Feed To Underhood Ele Center #1
K3- Blank- Na
L1- Red- B+ From Underhood Ele Center #1 To Ignition Switch
L2- Blank- Na
L3- Red- B+ Feed Underhood Ele Center #1 Igntion Switch

















95 Z34

Pst/color/ Description

A1-blank-na
A2- Gry- Fuel Pump
A3- Pnk- Ignition Switch To Fuse Block
B1- Red- B+ From #1 Component Center
B2- Wht- Cruise Control Engage Signal
B3- Pur- Theft Deterrent Relay Output
C1- Blank- Na
C2- Orn/blk- Park/neutral Switch Signal
C3- Lt Grn- A/c Request
C4- Lt Grn- Back Up Light Feed
D1- Dk Blu- Fuel Enable To Theft
D2- Wht- Stop Lamp To Cruise Control
D3- Yel/blk- Low Coolant
D4- Wht- Tach Output
D5- Lt Grn/blk- Park/neutral Switch Output To Rear Compart Release Switch
E1- Brn- Engine Oil Level Sensor
E2- Brn- Switch Ground For Charge Indicator
F1- Brn/wht- Low Oil Level Switch Output
F2- Tan- Oil Psi Indicator
G1- Brn- Cruise Control Cutoff Output
G2- Dk Grn- Coolant Temp Gauge
H1- Gry/blk- Cruise Control Resume/ Accel
H2- Dk Blu- Cruise Control Set/coast
H3- Brn/wht- Pcm “mil”
H4- Dk Grn- Pcm “vss”
H5- Gry- Cruise Control On/off
J1- Dk Blu- Transmission Select Switch
J2- Blank- Na
J3- Ppl- Brake Switch Feed For Auto Trannys
J4- Tan- (vin X) Orn (vin T)- Data Signal “uart”
K1- Red- B+from #1 Fuse Block And Ignition Switch
K2- Orn- (vin X)- Ign 3 Feed To Underhood Ele Center #1 (vint T)- Ignition Switch “ign 1” Feed To Underhood Ele Center #1
K3- Blank- Na
L1- Red- B+ From Underhood Ele Center #1 To Ignition Switch
L2- Yel- Trans Range To Thet Deterrant
L3- Ppl- Fused Feed To Range/park/ Neutral









96 Z34

Pst/color/ Description

A1- Pnk/wht- Stop Lamp
A2- Gry- Fuel Pump
A3- Blank- Na
B1- Red- B+ From #1 Component Center
B2- Wht- Cruise Control Engage Signal
B3- Pur- Theft Deterrent Relay Output
C1- Wht- Electronic Orrifice
C2- Orn/blk- Park/neutral Switch Signal
C3- Lt Grn- A/c Request
C4- Lt Grn- Back Up Light Feed
D1- Dk Blu- Fuel Enable To Theft
D2- Wht- Stop Lamp To Cruise Control
D3- Yel/blk- Low Coolant
D4- Wht- Tach Output
D5- Lt Grn- Park/neutral Switch Output To Rear Compart Release Switch
E1- Pnk- Ign #1 Feed To Fuse Block
E2- Brn- Switch Ground For Charge Indicator
F1- Brn/wht- Low Oil Level Switch Output
F2- Tan- Oil Psi Indicator
G1- Brn- Cruise Control Cutoff Output
G2- Dk Grn- Coolant Temp Gauge
H1- Gry/blk- Cruise Control Resume/ Accel
H2- Dk Blu- Cruise Control Set/coast
H3- Brn/wht- Pcm “mil”
H4- Dk Grn- Pcm “vss”
H5- Gry- Cruise Control On/off
J1- Blank- Na
J2- Ppl- #2 Serial Data Communication
J3- Ppl- Brake Switch Feed For Auto Trannys
J4- Tan- (vin X) Orn (vin T)- Data Signal “uart”
K1- Red- B+from #1 Fuse Block And Ignition Switch
K2- Orn- (vin X)- Ign 3 Feed To Underhood Ele Center #1 (vint T)- Ignition Switch “ign 1” Feed To Underhood Ele Center #1
K3- Blank- Na
L1- Black- Na
L2- Yelblk- Trans Range To Thet Deterrant
L3- Ppl- Fused Feed To Range/park/ Neutral

[d.o.h.c]

As you can see on the 94 does not have
-B2,B3, D2,E1, F1, G1, H1, H2, H5, J1,L2,L3.

I think that H5 from 94 has to be switch to B2 on the 96. From the 96 E1 needs to be switched to A3.

I dont know what to do with the others? Any one have any ideas.

[d.o.h.c]

It looks like alot of them that are not active from the 96 are blank on the 94, such as,
b2,d2,e1,f1,h1,h2,j1

-I am wondering what G1 from the 94 goes to on the 96
-You need to add 12v constant to L1 for the 96
-You need to switch E1-A3 for the 96
- Is L2 on the 96 the same as the B3 on the 94?

[d.o.h.c]

The B2 on the 96 harness is INCORRECT. I need to do some research and find out what pin the cruise control wire is.

[d.o.h.c]

ONe wire that I need is the 96 cruise control wire, color and position on the C100. Also I looked up the ALT wireing and I have a brown and bown and white on my 94. On the 96 its a red wire and in the book it says that the 94 and 96 have 3 wires, brown, red, brown and white, so WTH

[timg]

Try this excel spreadsheet for a 95 to 96 or 97 swap (both are included). I've posted it before. I think it's accurate, but I haven't personally swapped using it.

Tim

[d.o.h.c]

WEll I just got done with installing the wiring harness. It was overall not to bad, but some parts were a little difficult. Now comes the questions

Will the old cruise control still work with the new computer becasue its on a different wiring harness?

Do I need to worrie about the Theft system for the OBD II? I know there are a few wires that are not inside my car, casue its a 94 that the 96 has, just need to know if its necessary, if so what do I have to do/get?

I still have to install the starter motor and the wires for that along with the front knock sensor. I am also going to pick the newer style tranny switch so that it will plug right in.

[d.o.h.c]

Is there anyway to get around the VATS system? I know the 94 did not come with it, so I was just wondering what would probably happen if the 96 has it and the 94 does not?

[3100 MPFI]

IM me when you get in. I think I figured it out for you (the passkey stuff).