Anyone worked with the 16196397 yet?

[RobertISaar]

not currently read/stored anywhere in the code, but it isn't like it would take much to patch it in.

[RobertISaar]

nearly have this 93 PCM mapped out to my satisfaction... I've got a text document with my findings in it and more than a few photographs along the way, suffice to say that the e-side still has a few tricks left in its sleeve.

[1project2many]

BARO update on boosted engine is a challenge with one sensor. Dedicated BARO on one channel is a waste of data. Update could be accomplished during conditions which enable DFCO. Single sensor solution could involve electric vacuum switching valve on MAP line. When DFCO becomes active, engage valve and open MAP to atmo to take quick BARO reading. Interrupt BARO reading routine if TPS increases. Similar could be done using Baro sensor that shares MAP signal line. Electrically switch sensors during DFCO while monitoring TPS for change in case it's not appropriate to disconnect MAP.

[RobertISaar]

hmm..... i'll have to see what kind of outputs are still available to accomplish a little mini-muxing of the MAP circuit. as-is, there are a few open A/D channels on the E-side, i'll need to do a final pass on everything tonight.... figuring this stuff out at 4AM, I skipped a few things along the way.

[1project2many]

figuring this stuff out at 4AM, I skipped a few things along the way

It's really cool that you're putting the time into this. I hope the V660 crowd picks it up and runs with it. FWIW none of the GM turbo code bases did BARO updates properly. IIRC $58 will arbitrarily assign a BARO value at key on if a number of conditions aren't met.

[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