Anyone worked with the 16196397 yet?

[RobertISaar]

I would have thought GM would have done something like that for the Pikes Peak TGP considering the huge change in elevation, but I'm told it ran a rather stock-ish calibration.

[RobertISaar]

^ I recognize that situation.... I think the wrong button got pressed.

anyways, i'll post this stuff as I reconfirm it, turns out I got sloppy last night while probing around with the meter. I need to pull pics off of the camera and label the chips as I have them written down, but I do have some solid info on some important stuff.






E-side:

U:
1 16126532
2 56597
3 16127475 C94R 68HC11F1
4 37414
5 27474
6 M32AB 89551
7 16155187 AN28F256A flash PROM
8 P31AB 30965
9 P31AB 30965
10 M32AB 89551
11 P31AD 57245 logic gate(AND)
12 P31AB 47816
13 129170 CP03597

IRF9395 INJECTOR DRIVERS
8.388MHZ CRYSTAL
MISSING: U14 AND 2 LARGE TRANSISTORS
missing transistor closest to knock filter controls pin C5, other controls C6, these are PCS high and PCS low.

6811 A/D:
0 - battery volts
1 - right/rear O2
2 - left/front O2
3 - TPS
4 - pin A28(1K pulldown, 10K isolation)
5 - IAT
6 - a/d mux chip's output
7 - MAP

OC1 and OC4 are broken out, but function unknown
E-side mux chip is located on T-board

mux'd A/D:
0 - a/c pressure
1 - fuel pump monitor
2 - 10K isolator, 909 ohm pullup? (pin A7)
3 - 10K+? RC filter + 511K pulldown (pin A4)
4 - a/c temp sensor
5 - 200K to 2nd pin on knock filter(connected to sensor through 100 ohm resistor)
6 - coolant temp
7 - 20K to pin 1 of E-side PROM program circuit

T-side:

U:
15 64606 ALDL comms chip
16 034987 O2 amplifier
17 034987 O2 amplifier
18 16132083
19 16084368
20 16084523
21 P29AB 45153 8 channel mux for E-side A/D
22 P39AB 61285
23 P31AD 57245 logic gate(AND)
24 56597
25 16155187 AN28F256A flash PROM
26 16127475 C94R 68HC11F1
27 45980 63634 quad driver
28 45980 63634 quad driver
29 16180566 fuel pump relay driver
30 34992 power supply
31 M32AD 41398 connected to e-side via ribbon, inside row, pin 11
32 45980 63634 quad driver
33 34993 IAC driver
34 45980 63634 quad driver

MISSING U35 AND U36

A/D:
0 - coolant temp
1 - TPS
2 - 3rd pin of knock filter
3 - MAP
4 - trans temp
5 - pin A28(1K pulldown, 10K isolation)
6 - battery volts
7 - PCS sense

[1project2many]

^ I recognize that situation.... I think the wrong button got pressed.

Ahh... Yep.

I've seen a few GM "race" cals and they weren't all that exciting. Codes shut off, CL disabled, emissions disabled, and sometimes more timing to go with race fuel. I've actually got a rocketparts Q4 cal here along with one from the Snakeskinner LT5. On both cals you can compare scan ID and data bytes to determine the stock cal they were made from.

[RobertISaar]

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:

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.

[Xnke]

This is an awesome amount of data. I am going to try to trace through my 6397 here and find the A/D outputs that you have listed, see if I can lift the pullup/pulldown resistors and reconfigure it as a "normalized" 0-5V standard analog input for WBO2 monitoring. I just got home from the gulf coast so I'll get those comparison shots of the internals of a 4737 and 6397 today and get them posted up here, hopefully that helps some.

[Xnke]

Been going over the one stripped apart on my desk, here's what I am seeing:

IRF9395 INJECTOR DRIVERS
8.388MHZ CRYSTAL
MISSING: U14 AND 2 LARGE TRANSISTORS
missing transistor closest to knock filter controls pin C5, other controls C6, these are PCS high and PCS low. <--Pretty sure these are missing on my 6397 as well.

6811 A/D:
0 - battery volts
1 - right/rear O2
2 - left/front O2
3 - TPS
4 - pin A28(1K pulldown, 10K isolation)<--This is totally workable.
5 - IAT
6 - a/d mux chip's output
7 - MAP

Got anything to get me closer to locating the 1K pulldown and 10K isolation resistors for AD4? I am looking, hunting, probing, and am not seeing yet. It has been years since I did this level of hunt-and-peck, I've lost my eyes.

[RobertISaar]

some stuff is in non-sensical locations... most of them are channels have their R/C filtering components fairly close together though, when you find one, you'll find all of them. I seem to remember a cluster of caps/resistors for the e-side a/d channels on the other side of the board, right under/around the 6811. I did all of the e-side stuff first though.... I can vividly remember where everything is for the t-side stuff, but E is a little shaky.

A28 does seem like it would work without any changes. A4 on the mux'd A/D circuit looks like it should also work.

I'll work on pulling the best of the images I have along with a mspaint masterpiece of my chip name assignments.