time for a big post.... this is the last of the hardware data I can generate before sending this off into the postal system once again. i'll have to finish everything up once I have a proper one in my hands. oddly enough, this 93 unit isn't missing much from the 94-95 from what I can tell... I really don't know what that version would have changed/added for the FWD cars or the manual f-bodies. I'm almost certain I could flash a 94-95 program into it and have it function normally in a non-4L60E application.



looks like mux'ing in more a/d channels might be pretty easily done. the e-side channel 4 appears to be unused in the code, though oddly also connected to the T-side as channel 5... could just add in a 4051(since that is what the delco-numbered mux appears to be) and instead of having 1 or 2 usable channels that may require reconfiguring the pullup/down resistors to use anyways, you'll end up with 8 that can be wired any way you see fit. something as nuts as an additional 4 MAP sensors and 3 temp sensors to continuously monitor can calculate:

barometric pressure and ambient temp
MAP sensor between air filter and inlet of turbo/supercharger to measure filter restriction
MAP sensor and temp sensor after outlet of super/turbo
temp sensor and MAP installed post-intercooler

then your existing MAP/temp sensor installed in the intake(though most applications don't have the IAT installed as a MAT, it's an example).

with all of those sensors, you could continuously monitor and calculate compressor and cooler efficiency, which is...... excessive to the point of obsessive. but that is the goal though, right?


two of the previously unidentified chips appear to be 28-pin surface-mounted quad/output drivers? I've never seen this before to my knowledge. the 16132083 controls fan1, fan2, the p/n output(used on some cars for chime/autolocking since their shifter position switch didn't have that provision, which is weird), and an unused output on pin B17. the 16084368 chip controls the check gauges lamp(l/n cars only, I think), the SES, cruise-inhibit signal and an unused output on B9. those account for the outputs that aren't attached to the normal ZIP-15 packaged quad drivers, so I now believe have all of the existing I/O circuits identified. on the T-side, I have all but 2 ICs identified, 1 of which I'm certain is a logic gate, the other is attached to it and not much else obvious.



stuff I need to change in the post above:

the 56597(both of them) appears to be the equivalent of the P4 timer chip, so I'm going to refer to it as the P6 timer chip.
U13 (129170 CP03597) is more or less a dedicated injector controller.... the pinout is somewhat like the late 80s/early 90s 3800SFI injector controller chip.
U18 and U19 are the quad/output drivers I mentioned earlier.
31 M32AD 41398 connected to pin 15 on 27474(E-side)



and for new stuff:

quad drivers:
U27
1 - pin 51 of U24(T-side 56597)
A16 (3-2 DOWNSHIFT SOLENOID)
2 - pin 51 of U24(T-side 56597)
A16 (3-2 DOWNSHIFT SOLENOID)
3 - pin 3 of U23(T-side AND gate)
A15 (TCC)
4 - pin 27 of U24(T-side 56597)
A14 (LOW OIL LAMP)
U28
1 - pin 52 of U24(T-side 56597)
A13 (TCC PWM)
2 - pin 52 of U24(T-side 56597)
A13 (TCC PWM)
3 - pin 12 of U24(T-side 56597)
A12 (SHIFT SOLENOID B)
4 - pin 13 of U24(T-side 56597)
A11 (SHIFT SOLENOID A)
U32
1 - pin 3 of U1(E-side 16126532)
B13 (EGR 3)
2 - pin 3 of U1(E-side 16126532)
B13 (EGR 3)
3 - pin 4 of U1(E-side 16126532)
B12 (EGR 2)
4 - pin 5 of U1(E-side 16126532)
B11 (EGR 1)
U34
1 - pin 20 of U2(E-side 56597)
B6 (A/C CLUTCH)
2 - pin 50 of U2(E-side 56597)
B5 (UNUSED)
3 - pin 49 of U2(E-side 56597)
B4 (CCP)
4 - pin 51 of U2(E-side 56597)
B3 (AIR PUMP)



u18: output driver?
1 middle 26
2 b2(fan1)
3 ?
4 b1(fan2)
5 g
6 g
7 g
8 g
9 g
10 g
11 g
12 b18(p/n output)
13 ?
14 b17(unused)
15 ?
16 pin 49 U24(T-side 56597)
17 middle 23
18 pin 43 U24(T-side 56597)
19 g
20 g
21 g
22 g
23 g
24 g
25 g
26 + power
27 middle 24
28 middle 25

u19: output driver?
1 ?
2 b8(check guages light)
3 ?
4 b7(ses)
5 g
6 g
7 g
8 g
9 g
10 g
11 g
12 b9(unused)
13 ?
14 b10(cruise inhibit)
15 ?
16 pin 11 U24(T-side 56597)
17 pin 26 U24(T-side 56597)
18 pin 43 U24(T-side 56597)
19 g
20 g
21 g
22 g
23 g
24 g
25 g
26 + power
27 inside 21
28 pin 25 U24 (T-side 56597)



BACK TO E-SIDE:

Code:
address/data bus:
 6811 37414 56597 16126532
A0 58 20 44 20
A1 57 22 45 22
A2 56 23 46 23
A3 55 24 47 24
A4 54 25 - 25
A5 53 26 - 26
A6 52 27 - 27
A7 51 28 - 28
A8 50 29 - 29
A9 49 31 - 30
A10 48 30 - *
A11 47 32 - 32
A12 46 33 - 33
A13 45 34 - 34
A14 44 35 - 35
A15 43 36 - 36
D0 9 18 42 18
D1 10 17 41 17
D2 11 16 40 16
D3 12 15 39 15
D4 13 14 38 14
D5 14 13 37 13
D6 15 12 36 12
D7 16 11 35 11
* = CONNECTED TO U12 PIN 13. U12 PIN 12 IS CONNECTED WHERE EXPECTED. 56597-15 IS RELATED AS WELL

CSIO2 connected to 37414-42
CSIO1 connected to 37414-43
CSGEN connected to 56597-48
CSPRG connected to PROM-22






I need to figure out how to format all of this to make it less ridiculous to try and read. maybe i'll just upload the .txt if I can't figure it out in a normal post.