joe'sls1

iTrader: (3)

im converting a 98 to a 2002 computer and need help i need a photo off original harness or diagrams off it for a 98 and also for the new 2002 the more help the sooner i will get to the problem and this is what happend

c1-17 c1-18 c1-19 c1-33 c1-34 c1-40 c1-53 c1-55 c1-58 c1-70
c2 2 c2-6 c2-7 c2-8 c2-9 c2-10 c1-17 c2-29 c2-41 c2-43 c2-44 c2-47 c2-48 c2-51 c2-53 c2-60 c2-61 c2-63 c2-64 c2-67 these locations are missing on the new computer harness because i do not know where to put the corresponding wire this is what i have letf

upper harness where it y's from

green
brown
brown/white thin line
red/white
blue marked not used
black
black white
dk green/white
dk green/white
white marked to discard
black/white marked to discard

lower harness at bottom away from engine

pink
orange
purple
black/white
green/white
tan marked to discard

Shallow Bay

iTrader: (3)

IIRC, your car has a manual transmission. Most of the empty locations you listed are only used on cars with automatic transmissions. I used the following to come up with the list below:

98 Wiring Diagram (http://www.ls2.com/boggs/torques/98pinpcm.htm)
02 Wiring Diagram (http://www.ls2.com/boggs/torques/2002pcm.htm)
98 to 99+ PCM Swap Wiring Diagram (https://ls1tech.com/forums/pcm-diagnostics-tuning/711711-98-formula-pcm-99-pcm.html)

C1-

17 - Transmission Fluid Pressure Switch Signal B (DRK BLU) AT ONLY
18 - Transmission Fluid Pressure Switch Signal C (RED) AT ONLY
19 - Ignition 1 Voltage (PNK)
33 - TCC Brake Switch Signal (PPL) AT ONLY
34 - Neutral Safety Switch Signal (ORG/BLK) AT ONLY
40 - Ground (BLK)
53 - Low Reference Transmission Temperature Sensor (ORG/BLK) AT ONLY
55 - EGR Pintle Position Sensor Signal (BRN)
58 - ECM/PCM/VCM Class 2 Serial Data (PPL)
70 - Oil Level Switch Signal (BRN) WILL NOT WORK WITH 98 IC

C2-

2 - TCC Solenoid - Output - PWM (BRN) AT ONLY
6 - PC Solenoid Valve High Control Sol. A (RED/BLK) AT ONLY
7 - EGR Valve Control (LT BLU)
8 - PC Solenoid Valve Low Control Sol. A (LT BLU/WHT) AT ONLY
9 - Fuel Pump Relay Control Primary (DK GRN/WHT)
10 - Engine Speed Signal (WHT)
17 - A/C Request Signal (DRK GRN/WHT)
29 - IC 4 Control (DRK GRN/WHT)
41 - EGR Valve Ground (GRY)
43 - A/C Clutch Relay Control (DRK GRN/WHT)
44 - Reverse Lock Out Solenoid Control (LT GRN)
47 - 2/3 Shift Solenoid Valve Control (YEL/BLK) AT ONLY
48 - 1/2 Shift Solenoid Valve Control (LT GRN) AT ONLY
51 - TFT Sensor Signal (YEL/BLACK) AT ONLY
53 - Ignition Retard Signal (GRY/BLK) TRACTION CONTROL CARS ONLY
60 - Low Reference (BRN)
61 - Low Reference (BRN/WHT)
63 - Transmission Fluid Pressure Switch Signal A (PNK) AT ONLY
64 - Fuel Tank Pressure Sensor Signal (DRK GRN)
67 - IC 2 Control (RED/WHT)

It still looks like you have some wires that are unaccounted for. I would double check your empty locations and see if you missed any.