[rusEfi] 2006 Volkswagen Passat 2.0 Turbo GDI test mule #64

[AndreyB]

https://rusefi.com/online/view.php?msq=1079

nice instant cold start
https://rusefi.com/online/view.php?log=904
https://rusefi.com/online/view.php?log=905

[nmstec]

I have two wrong wiring diagrams for my WVWAK73C16P101397 test mule at https://github.com/rusefi/rusefi/wiki/VolkswagenPassatB6 and zero matching diagrams.

In real life I have alternator wire black/brown one pin away from CAN wires, CAN wires are at same position on both versions.

"Early" version shows green wire 64 which I do not have and alternator wire one pin away from CAN like I have.

image.png

"late" version does not have green which I do not have but alternator wire is two pins away from CAN unlike my reality.

image.png

This is a wiring Diagram error. This is the OEM info:

image.png (44.63 KiB) Viewed 5349 times

[nmstec]

Alternator pinout and info.

[AndreyB]

Just a note for myself that I have that cute oil puddle

image.png (854.14 KiB) Viewed 5304 times

[AndreyB]

TIL: wow that CAN packet 0x580 Motor Flexia is an interesting one!
Those Germans do not know the word "flexia" maybe it's "Motor Potentaial"?

First 4 bits are a counter and depending on first two bits of the counter we have three kinds if payload!!!

If first bit is zero we have static engine description, like 4 cylinders, otto cycle, turbo, 4 valves even 2.0 displacement

And with "01" lower bits we have oil level and oil warning threshold.

MED9.1-TFSI.pdf page 4071 and https://github.com/commaai/opendbc/pull/671/files

Code: Select all

 25937)     14567.1  Rx         0580  8  90 00 00 14 1C 93 48 14 
 27722)     15569.2  Rx         0580  8  91 4C 00 7F 00 F0 47 01 

 29506)     16571.4  Rx         0580  8  92 00 00 14 1C 93 48 14 
 31289)     17573.5  Rx         0580  8  93 49 00 11 1F E0 0C 46 

 33071)     18575.7  Rx         0580  8  94 00 00 14 1C 93 48 14 
 34854)     19578.9  Rx         0580  8  95 49 00 7F 00 F0 47 01 

 36640)     20581.6  Rx         0580  8  96 00 00 14 1C 93 48 14 
 38421)     21583.4  Rx         0580  8  97 48 00 11 1F E0 0C 46 

 40203)     22585.5  Rx         0580  8  98 00 00 14 1C 93 48 14 
 41989)     23587.9  Rx         0580  8  99 44 00 7F 00 F0 47 01 

[Abricos]

OMG magic
I make video for you all in slack but you don't have time for my video ...
I will leave this video here for anyone who is interested in information ...

[AndreyB]

Well today I've learned that B6 is part of https://en.wikipedia.org/wiki/Volkswagen_Group_A_platform#PQ46_platform_cars and golf IV is part of https://en.wikipedia.org/wiki/Volkswagen_Group_A_platform#PQ34

Nick let me extract more knowledge from you in person

[AndreyB]

Man in the middle is way more elegant with recent https://github.com/rusefi/rusefi/wiki/Lua-Scripting#canrxaddmaskbus-id-mask-callback Lua API progress

See https://github.com/rusefi/rusefi/blob/master/firmware/controllers/lua/examples/man-in-the-middle.txt for full script

[AndreyB]

https://github.com/rusefi/can-log-tools is a tool to convert CANbus trace combined with DBC file into a MLV log file.

Well, apparantly idle torque is liner-ish to TPS.

image.png (77.55 KiB) Viewed 4399 times

image.png (70.06 KiB) Viewed 4399 times

[AndreyB]

Code: Select all

    fakeTorque = interpolate(0, 6, 100, 60, tps)
    
    engineTorque = fakeTorque
    innerTorqWithoutExt = fakeTorque
    torqueLoss = 10
    requestedTorque = fakeTorque

Stock ecu, proteus-in-the-middle. It has moved with custom packet 0x280 MOTOR_1! Transmission is still unhappy but way less unhappy than without MOTOR_1 packet.

[AndreyB]

If you are just joining let me recap

PCAN OEM traces https://github.com/rusefi/rusefi_documentation/tree/master/OEM-Docs/VAG/2006-Passat-B6
DBC with my translations of many MOTOR_* packets https://github.com/rusefi/opendbc/blob/rusefi_prod/vw_golf_mk4.dbc

https://www.efianalytics.com/MegaLogViewer/ Megalog viewer logs generated from the above files https://github.com/rusefi/can-log-tools/tree/main/output

[AndreyB]

Someone has pointed me at Leiderman-Khlystov - looks like this magic is supposed to give me some torque number by RPM based on a few magic numbers?

Got a sample code snippet but it does not seem to come up with legit numbers Output for 2000 rpm input should not be 1800ish for 2.7 TDV6 LR engine

currentRpm = 2000

maxPowerHp =188.7
maxPowerRpm = 3643
maxTorqueNm = 441.5
maxTorqueRpm = 2689

maxPowerKw = maxPowerHp * 0.7355


torqAtMaxPower = maxPowerKw * 9549 / maxPowerRpm
print('torqAtMaxPower ' ..torqAtMaxPower)

rpmCoef = maxPowerRpm / maxTorqueRpm
print('rpmCoef ' ..rpmCoef)

torqCoef = maxTorqueNm / torqAtMaxPower
print('torqCoef ' ..torqCoef)

M3 =(torqCoef -1) * 100
zz =(100 *(rpmCoef -1) *(rpmCoef -1))
print('m3 ' ..M3)
print('zz ' ..zz)

ax = 1 -((M3 * rpmCoef *(2 - rpmCoef)) / zz)
bx = 2 *((M3 * rpmCoef) / zz)
cx =(M3 * rpmCoef * rpmCoef) / zz

print('ax ' ..ax)
print('bx ' ..bx)
print('cx ' ..cx)

xx = ax *((currentRpm / maxPowerRpm)) +(bx *(pow(currentRpm, 2) / pow(maxPowerRpm, 2))) -(cx *(pow(currentRpm, 3) / pow(maxPowerRpm, 3)))
print ('xx ' ..xx)


Ne = maxPowerKw * xx

Me =(9550 * Ne) / currentRpm

print('Me ' ..Me)

2022-09-04_19_04_23_215: EngineState: LUA: torqAtMaxPower 363.7921448
2022-09-04_19_04_23_216: EngineState: LUA: rpmCoef 1.3547787
2022-09-04_19_04_23_216: EngineState: LUA: torqCoef 1.2136050
2022-09-04_19_04_23_216: EngineState: LUA: m3 21.3605041
2022-09-04_19_04_23_217: EngineState: LUA: zz 12.5867967
2022-09-04_19_04_23_217: EngineState: LUA: ax -0.4834512
2022-09-04_19_04_23_217: EngineState: LUA: bx 4.5982718
2022-09-04_19_04_23_218: EngineState: LUA: cx 3.1148204
2022-09-04_19_04_23_218: EngineState: LUA: xx 2.7860727
2022-09-04_19_04_23_218: EngineState: LUA: Me 1846.3770752

[AndreyB]

Wow. This car has a (2.5 bar?) pressure sensor but it's _charge_ pressure sensor (before TB) not manifold pressure sensor (after TB)

Looks like it simply does not have a true MAP?! That's three hours of head banging. https://github.com/rusefi/rusefi/wiki/VolkswagenPassatB6

Oh, and it has a DC motor runner position actuator with a sensor for closed loop control.

image.png (1.87 MiB) Viewed 3885 times

[AndreyB]

MAF output is frequency, 2KHz idle 4KHz mild revving

Fixed 50%ish duty cycle.

[AndreyB]

Trying to feed that frequency based MAF into rusEFI. We have a small frequency divider PCB but Proteus did not like it See https://github.com/rusefi/rusefi-hardware/issues/158

image.png (1.26 MiB) Viewed 3681 times

[AndreyB]

freq div 16 MAFg/s
139 3.58
152 4.5
180 6.7
217 11
280 22
300 25
365 40

image.png (20.26 KiB) Viewed 3401 times

[AndreyB]

Reality seems to tell me that a manual GDI test mule would happen before I get time to finish VAG TCU integration Also GDI and TCU torque reporting have to be split into two separate action items. Looks like next step is a manual Jetta with same engine. I want this to happen but no timeline

https://www.patreon.com/rusefi

[AndreyB]

Seven torque-related fields on same image - that one made from passat-b6-stock-ecu-ecu-ptcan-fast-acceleration3.trc real driving, with RPM on the bottom chart

image.png (79.84 KiB) Viewed 2592 times

[AndreyB]

Same on parked vehicle
magic value 32 at 1200 rpm
magic value 82 at 3000 rpm

image.png (86.03 KiB) Viewed 2591 times

[AndreyB]

GDI does care about injection phase very very much. https://github.com/rusefi/rusefi/pull/4836 could be amazing for port injection but totally not for GDI. Ask me how I know!

[AndreyB]

Sooo close with Aisin 09G man in the middle Lua script! https://rusefi.com/online/view.php?msq=1345

[AndreyB]

car does not have MAP and MAF is now working, looking for help to improve TPS-based tune

pressure sensor is before throttle body so it's always baro pressure for now
MAF sensor is frequency based and we have issues measuring frequency reliable, different subject altogether

MAP tune which kind of starts the car even while no MAP sensor
https://rusefi.com/online/view.php?msq=1365
https://rusefi.com/online/view.php?log=1144

Same tune switched to Alpha-N is unable to idle the car, why? I was hoping for default VE to be ballpark close?
https://rusefi.com/online/view.php?msq=1366
https://rusefi.com/online/view.php?log=1145

[AndreyB]

OBD pin 7 is here, pins 13 and 15 are not around. Looks like Passat has k-line wire and might end up helping with Honda k-line efforts!

image.png (297.31 KiB) Viewed 1661 times

[AndreyB]

Just a note to self that https://github.com/rusefi/rusefi/commit/032ebc9794cdfdc559c39c07e154bc3d76d5119e version of TCU TP script did clear error codes

2023-03-05_13_51_12_188: EngineState: LUA: Sending 0x200: Starting TP with TCU
2023-03-05_13_51_12_189: EngineState: LUA: Got 0x201 packet code D0: TP Response 0 D0 0 3 60 7 1
2023-03-05_13_51_12_239: EngineState: LUA: Responding to 0x201 packet from 1888: Saying hello A0 F 8A FF 32 FF
2023-03-05_13_51_12_240: EngineState: LUA: Happy 300 startup packet A1 F 8A FF 4A FF
2023-03-05_13_51_12_340: EngineState: LUA: 0x300 Got from tester B1
2023-03-05_13_51_12_340: EngineState: LUA: Got 0xBx ACK
2023-03-05_13_51_12_342: EngineState: LUA: 0x300 Got from tester 10 0 2 50 89
2023-03-05_13_51_12_343: EngineState: LUA: Sending ACK Bx 177
2023-03-05_13_51_12_345: EngineState: LUA: Got Hello2 Response 10 0 2 50 89
2023-03-05_13_51_12_363: EngineState: LUA: Requesting error codes 11 0 4 18 2 FF 0
2023-03-05_13_51_12_365: EngineState: LUA: Looks like payload index 0: 10 0 2 50 89
2023-03-05_13_51_12_368: EngineState: LUA: Sending payload ACK 178
2023-03-05_13_51_12_369: EngineState: LUA: 0x300 Got from tester B2
2023-03-05_13_51_12_369: EngineState: LUA: Got 0xBx ACK
2023-03-05_13_51_12_370: EngineState: LUA: 0x300 Got from tester 21 0 17 58 7 5 22 24
2023-03-05_13_51_12_370: EngineState: LUA: Looks like payload index 0: 21 0 17 58 7 5 22 24
2023-03-05_13_51_12_370: EngineState: LUA: Looks like CODES_REQ response of length 23
2023-03-05_13_51_12_371: EngineState: LUA: HAVE CODES 23
2023-03-05_13_51_12_371: EngineState: LUA: Sending payload ACK 179
2023-03-05_13_51_12_372: EngineState: LUA: 0x300 Got from tester 22 5 24 24 5 25 24 5
2023-03-05_13_51_12_372: EngineState: LUA: Looks like payload index 1: 22 5 24 24 5 25 24 5
2023-03-05_13_51_12_372: EngineState: LUA: Sending payload ACK 180
2023-03-05_13_51_12_374: EngineState: LUA: 0x300 Got from tester 23 13 24 5 22 28 5 13
2023-03-05_13_51_12_378: EngineState: LUA: Looks like payload index 2: 23 13 24 5 22 28 5 13
2023-03-05_13_51_12_380: EngineState: LUA: Sending payload ACK 181
2023-03-05_13_51_12_440: EngineState: LUA: 0x300 Got from tester 14 28 5 20 24
2023-03-05_13_51_12_440: EngineState: LUA: Looks like payload index 3: 14 28 5 20 24
2023-03-05_13_51_12_441: EngineState: LUA: Sending payload ACK 182
2023-03-05_13_51_12_444: EngineState: LUA: 0x300 Got from tester 23 13 24 5 22 28 5 13
2023-03-05_13_51_12_446: EngineState: LUA: Looks like payload index 0: 23 13 24 5 22 28 5 13
2023-03-05_13_51_12_472: EngineState: LUA: Sending payload ACK 183
2023-03-05_13_51_12_474: EngineState: LUA: 0x300 Got from tester 14 28 5 20 24
2023-03-05_13_51_12_477: EngineState: LUA: Looks like payload index 1: 14 28 5 20 24
2023-03-05_13_51_12_479: EngineState: LUA: Sending payload ACK 184
2023-03-05_13_51_12_482: EngineState: LUA: 0x300 Got from tester 14 28 5 20 24
2023-03-05_13_51_12_483: EngineState: LUA: Looks like payload index 0: 14 28 5 20 24
2023-03-05_13_51_12_483: EngineState: LUA: Sending payload ACK 185
2023-03-05_13_51_13_287: EngineState: LUA: 0x300 A3 Keep-alive withErrorCodes=1
2023-03-05_13_51_13_288: EngineState: LUA: ******************* Requesting to Erase Code(s) *****************************
2023-03-05_13_51_13_339: EngineState: LUA: 0x300 Got from tester B3
2023-03-05_13_51_13_340: EngineState: LUA: Got 0xBx ACK
2023-03-05_13_51_13_341: EngineState: LUA: 0x300 Got from tester 15 0 3 54 FF 0
2023-03-05_13_51_13_344: EngineState: LUA: Looks like payload index 0: 15 0 3 54 FF 0
2023-03-05_13_51_13_376: EngineState: LUA: Sending payload ACK 186
2023-03-05_13_51_13_378: EngineState: LUA: 0x300 They said Bye-Bye




2023-03-05_13_51_16_387: EngineState: LUA: Sending 0x200: Starting TP with TCU
2023-03-05_13_51_16_387: EngineState: LUA: Got 0x201 packet code D0: TP Response 0 D0 0 3 60 7 1
2023-03-05_13_51_16_387: EngineState: LUA: Responding to 0x201 packet from 1888: Saying hello A0 F 8A FF 32 FF
2023-03-05_13_51_16_389: EngineState: LUA: Happy 300 startup packet A1 F 8A FF 4A FF
2023-03-05_13_51_16_499: EngineState: LUA: 0x300 Got from tester B1
2023-03-05_13_51_16_499: EngineState: LUA: Got 0xBx ACK
2023-03-05_13_51_16_499: EngineState: LUA: 0x300 Got from tester 10 0 2 50 89
2023-03-05_13_51_16_500: EngineState: LUA: Sending ACK Bx 177
2023-03-05_13_51_16_500: EngineState: LUA: Got Hello2 Response 10 0 2 50 89
2023-03-05_13_51_16_500: EngineState: LUA: Requesting error codes 11 0 4 18 2 FF 0
2023-03-05_13_51_16_501: EngineState: LUA: Looks like payload index 0: 10 0 2 50 89
2023-03-05_13_51_16_501: EngineState: LUA: Sending payload ACK 178
2023-03-05_13_51_16_673: EngineState: LUA: 0x300 Got from tester B2
2023-03-05_13_51_16_673: EngineState: LUA: Got 0xBx ACK
2023-03-05_13_51_16_674: EngineState: LUA: 0x300 Got from tester 11 0 2 58 0
2023-03-05_13_51_16_674: EngineState: LUA: Looks like payload index 0: 11 0 2 58 0
2023-03-05_13_51_16_674: EngineState: LUA: Looks like CODES_REQ response of length 2
2023-03-05_13_51_16_675: EngineState: LUA: Sending payload ACK 179
2023-03-05_13_51_16_675: EngineState: LUA: NO CODES
2023-03-05_13_51_16_675: EngineState: LUA: 0x300 They said Bye-Bye




2023-03-05_13_51_19_495: EngineState: LUA: Sending 0x200: Starting TP with TCU
2023-03-05_13_51_19_495: EngineState: LUA: Got 0x201 packet code D0: TP Response 0 D0 0 3 60 7 1
2023-03-05_13_51_19_661: EngineState: LUA: Responding to 0x201 packet from 1888: Saying hello A0 F 8A FF 32 FF
2023-03-05_13_51_19_661: EngineState: LUA: Happy 300 startup packet A1 F 8A FF 4A FF
2023-03-05_13_51_19_662: EngineState: LUA: 0x300 Got from tester B1
2023-03-05_13_51_19_663: EngineState: LUA: Got 0xBx ACK
2023-03-05_13_51_19_663: EngineState: LUA: 0x300 Got from tester 10 0 2 50 89
2023-03-05_13_51_19_663: EngineState: LUA: Sending ACK Bx 177
2023-03-05_13_51_19_664: EngineState: LUA: Got Hello2 Response 10 0 2 50 89
2023-03-05_13_51_19_664: EngineState: LUA: Requesting error codes 11 0 4 18 2 FF 0
2023-03-05_13_51_19_664: EngineState: LUA: Looks like payload index 0: 10 0 2 50 89
2023-03-05_13_51_19_665: EngineState: LUA: Sending payload ACK 178
2023-03-05_13_51_19_665: EngineState: LUA: 0x300 Got from tester B2
2023-03-05_13_51_19_665: EngineState: LUA: Got 0xBx ACK
2023-03-05_13_51_19_666: EngineState: LUA: 0x300 Got from tester 11 0 2 58 0
2023-03-05_13_51_19_666: EngineState: LUA: Looks like payload index 0: 11 0 2 58 0
2023-03-05_13_51_19_666: EngineState: LUA: Looks like CODES_REQ response of length 2
2023-03-05_13_51_19_667: EngineState: LUA: Sending payload ACK 179
2023-03-05_13_51_19_667: EngineState: LUA: NO CODES
2023-03-05_13_51_20_593: EngineState: LUA: 0x300 A3 Keep-alive withErrorCodes=0
2023-03-05_13_51_21_705: EngineState: LUA: 0x300 A3 Keep-alive withErrorCodes=0
2023-03-05_13_51_22_800: EngineState: LUA: 0x300 A3 Keep-alive withErrorCodes=0
2023-03-05_13_51_23_898: EngineState: LUA: 0x300 A3 Keep-alive withErrorCodes=0
2023-03-05_13_51_24_889: EngineState: LUA: 0x300 A3 Keep-alive withErrorCodes=0
2023-03-05_13_51_24_890: EngineState: LUA: Requesting error codes 12 0 4 18 2 FF 0
2023-03-05_13_51_25_031: EngineState: LUA: 0x300 Got from tester B3
2023-03-05_13_51_25_031: EngineState: LUA: Got 0xBx ACK
2023-03-05_13_51_25_032: EngineState: LUA: 0x300 Got from tester 12 0 2 58 0
2023-03-05_13_51_25_032: EngineState: LUA: Looks like payload index 0: 12 0 2 58 0
2023-03-05_13_51_25_032: EngineState: LUA: Looks like CODES_REQ response of length 2
2023-03-05_13_51_25_033: EngineState: LUA: Sending payload ACK 180
2023-03-05_13_51_25_033: EngineState: LUA: NO CODES
2023-03-05_13_51_25_033: EngineState: LUA: 0x300 They said Bye-Bye





2023-03-05_13_51_27_992: EngineState: LUA: Sending 0x200: Starting TP with TCU
2023-03-05_13_51_27_992: EngineState: LUA: Got 0x201 packet code D0: TP Response 0 D0 0 3 60 7 1
2023-03-05_13_51_27_992: EngineState: LUA: Responding to 0x201 packet from 1888: Saying hello A0 F 8A FF 32 FF
2023-03-05_13_51_27_996: EngineState: LUA: Happy 300 startup packet A1 F 8A FF 4A FF
2023-03-05_13_51_28_167: EngineState: LUA: 0x300 Got from tester B1
2023-03-05_13_51_28_168: EngineState: LUA: Got 0xBx ACK
2023-03-05_13_51_28_168: EngineState: LUA: 0x300 Got from tester 10 0 2 50 89
2023-03-05_13_51_28_168: EngineState: LUA: Sending ACK Bx 177
2023-03-05_13_51_28_169: EngineState: LUA: Got Hello2 Response 10 0 2 50 89
2023-03-05_13_51_28_169: EngineState: LUA: Requesting error codes 11 0 4 18 2 FF 0
2023-03-05_13_51_28_169: EngineState: LUA: Looks like payload index 0: 10 0 2 50 89
2023-03-05_13_51_28_170: EngineState: LUA: Sending payload ACK 178
2023-03-05_13_51_28_170: EngineState: LUA: 0x300 Got from tester B2
2023-03-05_13_51_28_170: EngineState: LUA: Got 0xBx ACK
2023-03-05_13_51_28_171: EngineState: LUA: 0x300 Got from tester 11 0 2 58 0
2023-03-05_13_51_28_171: EngineState: LUA: Looks like payload index 0: 11 0 2 58 0
2023-03-05_13_51_28_171: EngineState: LUA: Looks like CODES_REQ response of length 2
2023-03-05_13_51_28_172: EngineState: LUA: Sending payload ACK 179
2023-03-05_13_51_28_172: EngineState: LUA: NO CODES
2023-03-05_13_51_28_174: EngineState: LUA: 0x300 They said Bye-Bye

[AndreyB]

More notes to self

01314 - Engine Control Module
004 - No Signal/Communication
Freeze Frame:
Fault Status: 00101101

image.png (52.83 KiB) Viewed 1351 times

image.png (71.38 KiB) Viewed 1348 times

[AndreyB]

rusEFI

image.png (258.6 KiB) Viewed 1347 times

[AndreyB]

Weird, without ECU we get same "008 invalid signal" not "004 no communication"

image.png (241.11 KiB) Viewed 1347 times

[AndreyB]

real ECU

image.png (278.97 KiB) Viewed 1346 times

[AndreyB]

TCU Lua seems to be pretty good!

Funny thing my timing was 90 degrees off - Norman has just made me a good enough Alpha-N tune

log https://rusefi.com/online/view.php?log=1185
golden tune https://rusefi.com/online/view.php?msq=1411

Two issues right away
https://github.com/mck1117/wideband/issues/215
https://github.com/rusefi/rusefi/issues/5155

[AndreyB]

Funny thing my timing was 90 degrees off

well, now with hpfp cam parameter adjusted https://rusefi.com/online/view.php?msq=1413