Electrical Issues

   #1  

camsco123

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C?ID=651538
Hey all, bought a 2013 Audi S4 sight unseen from what I thought was a decent dealer. :thumbs:

Turns out they got me good. Bought the car back in December and have had the issues since.

Some are resolved, the car had undisclosed water intrusion from a failed or improperly installed windshield.

The e380 (mmi control panel) is still dead.

Things I've done so far = Replace the J794 (5f) with a known working unit from eBay, and had Component Protection removed.

Then, I recoded the 5f to my old s4's settings to restore the navigation and other features.

So, I now can control the MMI directly with my steering wheel, audio, volume, station etc.

I replaced ALL wiring from the 5f to the e380 16 pin connector.

I replaced the e380 and I also have 2 spare e380s at this point.

Voltage is as follows:

Ground is perfect 0.0 ohm
Power is 12-13v
Wake is fluctuating
LIN to/from static around 5v
Res BT gets fluctuating voltage around 1-3v
Res MU gets 0v and always has

The e380 does not light up and I cannot navigate through the MMI with the control panel, but the reset command (setup + center knob + top right button) does reset the 5f.

Since I've replaced the 5f, the e380 and the wiring, what the hell else could be going on? Unless my wiring is weird somehow, although I bought the correct terminals and did confirm I wired everything properly.

Maybe the 16 pin connector itself is causing some issues?

Note: SVM fault code only appeared after Audi removed CP from the "new" 5f unit and they must have updated firmware.

Any ideas are welcome.

Also, secondarily: Cylinder 6 keeps intermittently misfiring. I've already replaced the coil packs with upgraded ECS tuning coil packs and changed out spark plugs.

So... next, potentially fuel injectors? Although I'd expect it to be more of a consistent misfire if it was fuel related. The other thing is carbon or vacuum. Idk. Thoughts appreciated before I dig in this weekend..

Code:
Friday,17,April,2026,19:32:41:09783
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 11 x64
VCDS Version: 26.3.0.0 (x64)  HEX-V2 CB: 0.4701.5
Data version: 20260320 DS375.1
www.Ross-Tech.com


VIN: WAUBGAFLXDA104827   License Plate:


Chassis Type: FL-AU48 (8R0)
Scan: 01 02 03 05 08 09 15 16 17 19 36 42 44 46 52 53 56 5F 62 6C
          72 A9

VIN: WAUBGAFLXDA104827   Mileage: 160600km-99792miles

01-Engine -- Status: Malfunction 0010
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: Malfunction 0010
04-Steering Angle -- Status: OK 0000
05-Acc/Start Auth. -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: Malfunction 0010
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
36-Seat Mem. Drvr -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: OK 0000
46-Central Conv. -- Status: OK 0000
52-Door Elect, Pass. -- Status: Malfunction 0010
53-Parking Brake -- Status: OK 0000
56-Radio -- Status: Malfunction 0010
5F-Information Electr. -- Status: Malfunction 0010
62-Door, Rear Left -- Status: OK 0000
6C-Back-up Cam. -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
A9-Struct. Borne Sound -- Status: OK 0000
-------------------------------------------------------------------------------
Address 01: Engine (J623-CGXC)       Labels:. 06E-907-551-CGW.clb
   Part No SW: 8K5 907 551 E    HW: 4G0 907 551 A
   Component: 3.0l V6 TFSIH07 0004
   Revision: --H07---    CVN: 2EBC860F
   Coding: 0A250034052600060000
   Shop #: WSC 06208 000 00000
   ASAM Dataset: EV_ECM30TFS0218K5907551E 001004
   ROD: EV_ECM30TFS0218K5907551E.rod
   VCID: 382ECA5A52D1E8BA373-806C
   VINID: 9D19525D159CA144410042021CF86237EC

3 Faults Found:
7123 - Cylinder 6
          P0306 00 [01100101] - Misfire Detected
          Not Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 2
                    Fault Frequency: 1
                    Mileage: 160592 km
                    Date: 2026.04.17
                    Time: 00:18:45

                    Engine speed: 3784.00 /min
                    Normed load value: 21.6 %
                    Vehicle speed: 32 km/h
                    Coolant temperature: 90 °C
                    Intake air temperature: 45 °C
                    Ambient air pressure: 970 mbar
                    Voltage terminal 30: 13.202 V
                    Unlearning counter according OBD: 40
                    Engine speed: actual: 3776 /min
                    MAF_ENVD: 294.14117 mg/stroke
                    Coolant temperature (unfiltered): 90.75 °C
                    Engine: operating status: PL
                    T_AST_ENVD: 77.10 s
                    Vehicle speed: actual: 32 km/h

6333 - Oxygen (Lambda) Sensor Heating Circuit: B1 S2
          P1117 00 [10101111] - Short to Ground
          MIL ON - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 2
                    Fault Frequency: 1
                    Mileage: 160562 km
                    Date: 2026.04.15
                    Time: 01:02:29

                    Engine speed: 1322.00 /min
                    Normed load value: 50.2 %
                    Vehicle speed: 52 km/h
                    Coolant temperature: 87 °C
                    Intake air temperature: 24 °C
                    Ambient air pressure: 960 mbar
                    Voltage terminal 30: 12.796 V
                    Unlearning counter according OBD: 40
                    Engine speed: actual: 1248 /min
                    MAF_ENVD: 152.51764 mg/stroke
                    Coolant temperature (unfiltered): 10.50 °C
                    Engine: operating status: IS
                    Battery voltage: 11.679688 V
                    STATE_LS_ENVD[1]: 1

6336 - Oxygen (Lambda) Sensor Heating Circuit: B2 S2
          P1121 00 [10101111] - Short to Ground
          MIL ON - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 2
                    Fault Frequency: 1
                    Mileage: 160562 km
                    Date: 2026.04.15
                    Time: 01:02:29

                    Engine speed: 1322.00 /min
                    Normed load value: 50.2 %
                    Vehicle speed: 52 km/h
                    Coolant temperature: 87 °C
                    Intake air temperature: 24 °C
                    Ambient air pressure: 960 mbar
                    Voltage terminal 30: 12.796 V
                    Unlearning counter according OBD: 40
                    Engine speed: actual: 1248 /min
                    MAF_ENVD: 152.51764 mg/stroke
                    Coolant temperature (unfiltered): 10.50 °C
                    Engine: operating status: IS
                    Battery voltage: 11.679688 V
                    STATE_LS_ENVD[2]: 1

Readiness: 0000 0100

-------------------------------------------------------------------------------
Address 02: Auto Trans (J217)       Labels:| 0B5-927-156.clb
   Part No SW: 8K2 927 156 M    HW: 0B5 927 156 J
   Component: 0B5 30TFSINAR H01 0012
   Revision: --H01---    CVN: 00007545
   Coding: 000001
   Shop #: WSC 06325 000 00000
   ASAM Dataset: EV_TCMDL501021 001025
   ROD: EV_TCMDL501021.rod
   VCID: 40DEA2BA0A01A07A8F3-8014

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104)       Labels:. 8K0-907-379-V1.clb
   Part No SW: 8K0 907 379 CK    HW: 8K0 907 379 CK
   Component: ESP8 quattro  H09 0100
   Revision: --------    Serial number: --------------
   Coding: 291D18
   Shop #: WSC 06325 000 00000
   VCID: 04566EAA5E197C5AEBB-8050

1 Fault Found:
02214 - Tire Pressure Warning
            000 - -
             Freeze Frame:
                    Fault Status: 01100000
                    Fault Priority: 1
                    Fault Frequency: 4
                    Reset counter: 187
                    Mileage: 160436 km
                    Time Indication: 0
                    Date: 2026.04.11
                    Time: 00:04:57

             Freeze Frame:
                    Hex Value: 0x00C0
                    Hex Value: 0x4702
                    Hex Value: 0x0021
                    Hex Value: 0x1F9D
                    Hex Value: 0x0000


-------------------------------------------------------------------------------
Address 05: Acc/Start Auth. (J393)       Labels:. 8K0-907-064-05.clb
   Part No SW: 8K0 907 064 GM    HW: 8K0 907 064 FM
   Component: BCM2 2.0      H11 0621
   Revision: 00002001
   Coding: 0D814000000000000000
   Shop #: WSC 06325 000 00000
   VCID: 015867BE410B6972C0D-8054

   Subsystem 1 - Part No SW: 8K0 959 754 BB    HW: 8K0 959 754 BB
   Component: FBSAUDIB8 IDG  H71 0083
   Serial number: 0512000043291021

   Subsystem 2 - Part No SW: 8K0 905 852 E    HW: 8K0 905 852 E
   Component: J764 ELV MLB  H40 0046
   Serial number: 2312000155039012

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC (J255)       Labels:. 8Kx-820-043-3Z.clb
   Part No SW: 8K1 820 043 T    HW: 8K1 820 043 T
   Component: KLIMA 3 ZONEN H04 0121
   Revision: C1000000    Serial number: 01140720120323
   Coding: 6600228000
   Shop #: WSC 06325 000 00000
   VCID: 3928CF5E695BF1B2C8D-806C

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519)       Labels:. 8K0-907-063.clb
   Part No SW: 8K0 907 063 DH    HW: 8K0 907 063 DH
   Component: BCM1 1.0      H16 0103
   Revision: 08016001    Serial number: 00000447744202
   Coding: 26000091863CAFC00000484300003D0D0F1C5308A2090221000008004000030100000030000000
   Shop #: WSC 99999 999 2097151
   VCID: 78AE0A5A12D128BAF73-802C

   Subsystem 1 - Part No SW: 8K1 955 119 A    HW: 8T1 955 119   Labels: 1KX-955-119.CLB
   Component: WWS 120712  H07 0080
   Serial number: SWF12070126177  
   Coding: 00FD11

   Subsystem 2 - Part No SW: 8U0 955 559 B    HW: 8U0 955 559 B  Labels: 8U0-955-559.CLB
   Component: G397_RLFS  H06 0002
   Serial number: 20418586        
   Coding: 02005D

   Subsystem 3 - Part No SW: 8K0 941 531 AS    HW: 8K0 941 531 AS
   Component: E1 - LDS  H03 0031
   Serial number: 00000000000507121490

   Subsystem 4 - Part No SW: 4H0 907 658     HW: 4H0 907 658
   Component: AQ_Hum_Sensor  H03 0003
   Serial number: 69588B36000000000001

2 Faults Found:
02258 - Door Opener Transmitter
            004 - No Signal/Communication
             Freeze Frame:
                    Fault Status: 01100100
                    Fault Priority: 3
                    Fault Frequency: 6
                    Reset counter: 184
                    Mileage: 160562 km
                    Time Indication: 0
                    Date: 2026.04.15
                    Time: 01:02:38

02258 - Door Opener Transmitter
            008 - Implausible Signal - Intermittent
             Freeze Frame:
                    Fault Status: 00101000
                    Fault Priority: 3
                    Fault Frequency: 1
                    Reset counter: 224
                    Mileage: 160570 km
                    Time Indication: 0
                    Date: 2026.04.15
                    Time: 01:21:04


-------------------------------------------------------------------------------
Address 15: Airbags (J234)       Labels:| 8K0-959-655.clb
   Part No SW: 8K0 959 655 P    HW: 8K0 959 655 P
   Component: AirbagVW-AU10 H45 0610
   Serial number: 003KJD90FE6D   Dataset Number: 8K0909602VA 0001
   Coding: 303844354730303030304A55304C384B3053
   Shop #: WSC 40720 001 1048576
   ASAM Dataset: EV_AirbaECUVWAUDI010 003010
   ROD: EV_AirbaECUVWAUDI010_003_AU48.rod
   VCID: 4ACA80923C3D6A2A517-801E

   Seat occupant detection:
   Subsystem 1 - Part No SW: 8K0 959 339 C    HW: 8K0 959 339 C
   Component: BF-Gewichtss.  H02 0040
   Serial number: 5810000R1200009H8K

   Crash sensor for side airbag: driver side:
   Serial number: 6334MSME6F452D73S

   Crash sensor for side airbag: passenger side:
   Serial number: 6344MSME6F527160G

   Crash sensor for side airbag: driver side rear:
   Serial number: 6352QSME441A4566H

   Crash sensor for side airbag: passenger side rear:
   Serial number: 6362QSME2F1A0874P

   Crash sensor for front airbag: driver side:
   Serial number: 63732SME6C1C25723

   Crash sensor for front airbag: passenger side:
   Serial number: 63832SME6C1C1F46E

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel (J527)       Labels:. 8K0-953-568.clb
   Part No SW: 8R0 953 568 Q    HW: 8R0 953 568 Q
   Component: Lenks.Modul   H02 0171
   Revision: 00000000    Serial number: 20120716000823
   Coding: 000036
   Shop #: WSC 06325 000 00000
   VCID: 4FFC9186C7DF4F02069-801A

   Component: E221 - MFL  H03 0004

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285)       Labels:. 8T0-920-xxx-17.clb
   Part No SW: 8K0 920 982 L    HW: 8K0 920 982 L
   Component: KOMBIINSTR.   H35 0553
   Revision: 00000000    Serial number: RBN72WD7D  
   Coding: 8BB709000301D705020000
   Shop #: WSC 99999 999 2097151
   VCID: 3D20DB4E7D73CD92E45-8068

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533)       Labels:. 8T0-907-468.clb
   Part No SW: 8R0 907 468 H    HW: 8R0 907 468 C
   Component: GW-BEM 4CAN-M H11 0051
   Revision: 1Y050025    Serial number: 2541Y12702024D
   Coding: 80C303FF00
   Shop #: WSC 06325 000 00000
   VCID: 44D6AEAA1E99BC5AABB-8010

   Subsystem 1 - Part No SW: 8T0 915 181     HW: 8T0 915 181
   Component: J367-BDMHella  H03 8041
   Serial number: 8549867701      

No fault code found.

-------------------------------------------------------------------------------
Address 36: Seat Mem. Drvr (J136)       Labels:. 8T0-959-760.clb
   Part No SW: 8K0 959 760 D    HW: 8K0 959 760 D
   Component: MEM-FS        H06 0076
   Revision: AA000000    Serial number: 00000033047059
   Coding: 00581B00000000000000
   Shop #: WSC 06325 000 00000
   VCID: 3B24D5566367C3A2DA1-806E

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver (J386)       Labels:. 8K0-959-793.clb
   Part No SW: 8T0 959 793 P    HW: 8T0 959 793 G
   Component: TSG FA        H09 0304
   Revision: --------    Serial number: --------------
   Coding: 011C13204E00410001
   Shop #: WSC 06325 000 00000
   VCID: 56F264E2F8053ECAC5F-8002

No fault code found.

-------------------------------------------------------------------------------
Address 44: Steering Assist (J500)       Labels:| 8K0-909-144.clb
   Part No SW: 8K0 909 144 F    HW: 8K0 909 144 B
   Component: RCEPS         H37 0507
   Revision: 00001000    Serial number: 0020286248 Dataset Number: 8K0909852H  0023
   Coding: 100000000001
   Shop #: WSC 06324 000 00000
   ASAM Dataset: EV_RCEPSAU48X 008014
   ROD: EV_RCEPSAU48X_008.rod
   VCID: 3436FE6A4EB90CDA1BB-8060

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv. (J393)       Labels:. 8K0-907-064-46.clb
   Part No SW: 8K0 907 064 GM    HW: 8K0 907 064 FM
   Component: BCM2 2.0      H11 0621
   Revision: 00002001    Serial number: 0179874643
   Coding: 0106023A00FA400580B0013200000000
   Shop #: WSC 99999 999 2097151
   VCID: 015867BE410B6972C0D-8054

   Subsystem 1 - Part No SW: 8K0 959 719 B    HW: 8K0 959 719
   Component: GTO BF  H01 0080
   Serial number: 00000000000000545201

   Subsystem 2 - Part No: 1K0 951 605 C
   Component: LIN BACKUP HO  H05 1501

   Subsystem 3 - Part No SW: 8K0 959 591 B    HW: 8K0 959 591
   Component: J245 PS050  H08 0043

No fault code found.

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. (J387)       Labels:. 8K0-959-792.clb
   Part No SW: 8T0 959 792 P    HW: 8T0 959 792 G
   Component: TSG BF        H09 0304
   Revision: --------    Serial number: --------------
   Coding: 011C13204E00410001
   Shop #: WSC 06325 000 00000
   VCID: 55F063EEE50335D2CC5-8000

1 Fault Found:
00920 - Heated Outside Mirrors; Driver Side (Z4) / Passenger Side (Z5)
            012 - Electrical Fault in Circuit
             Freeze Frame:
                    Fault Status: 01101100
                    Fault Priority: 3
                    Fault Frequency: 1
                    Reset counter: 187
                    Mileage: 160603 km
                    Time Indication: 0
                    Date: 2026.04.18
                    Time: 01:23:41


-------------------------------------------------------------------------------
Address 53: Parking Brake (----)       Labels: 8K0-907-801-V2.clb
   Part No SW: 8K0 907 801 L    HW: 8K0 907 801 J
   Component: EPB-4         H01 0003
   Revision: --------    Serial number: 20000000120673
   ASAM Dataset: EV_ParkiBrake 001027
   ROD: EV_ParkiBrake_AU48.rod
   VCID: 382ECA5A52D1E8BA373-806C

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio (R)       Labels:. 4F0-035-0xx-56.clb
   Part No SW: 4G0 035 082 D    HW: 4G0 035 082
   Component: Radio U SIRIU H60 0112
   Revision: AB001007    Serial number: 156G 0C7614094
   Coding: 020007020100000001
   Shop #: WSC 06325 000 00000
   VCID: 2118073EE1CB8972E0D-8074

2 Faults Found:
02558 - Rear Left Mid-Range/Woofer Loudspeaker (R159)
            011 - Open Circuit
             Freeze Frame:
                    Fault Status: 01101011
                    Fault Priority: 5
                    Fault Frequency: 1
                    Reset counter: 184
                    Mileage: 160562 km
                    Time Indication: 0
                    Date: 2026.04.15
                    Time: 01:02:33

             Freeze Frame:
                    Voltage: 13.10 V

02559 - Rear Right Mid-Range/Woofer Loudspeaker (R160)
            011 - Open Circuit - Intermittent
             Freeze Frame:
                    Fault Status: 00101011
                    Fault Priority: 5
                    Fault Frequency: 1
                    Reset counter: 224
                    Mileage: 160562 km
                    Time Indication: 0
                    Date: 2026.04.15
                    Time: 01:02:33

             Freeze Frame:
                    Voltage: 13.10 V


-------------------------------------------------------------------------------
Address 5F: Information Electr. (J794)       Labels:. 4E0-035-6xx-5F.clb
   Part No SW: 8R1 035 746 G    HW: 8R1 035 746 B
   Component: H-BNT-NA      H43 0901
   Revision: --------    Serial number: 204FW0C7506527
   Coding: 110200000206A1EF41028B4E00000403140000000000000000
   Shop #: WSC 99999 999 209715
   VCID: 3B24D5566367C3A2DA1-806E

   Subsystem 1 - Part No: 8R0 060 884 AM
   Component: NAR 2012  0605

   Subsystem 2 - Part No SW: 8R0 919 604     HW: 8R0 919 604
   Component: DU7 High  H41 0104
   Serial number: A130K10BS053231  

   Subsystem 3 - Part No: 8R0 060 961 D
   Component: CD-Database  4353

3 Faults Found:
03276 - Please Check Software Version Management
            000 - -
             Freeze Frame:
                    Fault Status: 01100000
                    Fault Priority: 6
                    Fault Frequency: 1
                    Reset counter: 186
                    Mileage: 160603 km
                    Time Indication: 0
                    Date: 2026.04.17
                    Time: 02:01:09

             Freeze Frame:
                    Text: ARU9471,TNR,A,1,172,1                

00658 - Control Head
            004 - No Signal/Communication
             Freeze Frame:
                    Fault Status: 01100100
                    Fault Priority: 5
                    Fault Frequency: 1
                    Reset counter: 186
                    Mileage: 160603 km
                    Time Indication: 0
                    Date: 2026.04.17
                    Time: 02:00:48

             Freeze Frame:
                    Voltage: 11.70 V

00658 - Control Head
            012 - Electrical Fault in Circuit
             Freeze Frame:
                    Fault Status: 01101100
                    Fault Priority: 5
                    Fault Frequency: 1
                    Reset counter: 187
                    Mileage: 160603 km
                    Time Indication: 0
                    Date: 2026.04.17
                    Time: 02:09:52

             Freeze Frame:
                    Voltage: 12.60 V
                    Bin. Bits:      001


-------------------------------------------------------------------------------
Address 62: Door, Rear Left (J388)       Labels:. 8K0-959-795.clb
   Part No SW: 8T0 959 795 Q    HW: 8T0 959 795 H
   Component: TSG HL        H07 0304
   Revision: --------    Serial number: --------------
   Coding: 010C13204000210001
   Shop #: WSC 06325 000 00000
   VCID: 59E86FDE891B11B2E8D-800C

No fault code found.

-------------------------------------------------------------------------------
Address 6C: Back-up Cam.        Labels: 8T0-907-441.clb
   Part No SW: 8T0 907 441 C    HW: 4L0 907 441 B
   Component: J772__Rearview      0040
   Revision: --H07---    Serial number: 525PA8-J2590LF
   Coding: 1000006
   Shop #: WSC 06325 000 00000
   VCID: 382ECA5A5E51E8BA373-806C

No fault code found.

-------------------------------------------------------------------------------
Address 72: Door, Rear Right (J389)       Labels:. 8K0-959-794.clb
   Part No SW: 8T0 959 795 Q    HW: 8T0 959 795 H
   Component: TSG HR        H07 0304
   Revision: --------    Serial number: --------------
   Coding: 010C13204000210001
   Shop #: WSC 06325 000 00000
   VCID: 59E86FDE891B11B2E8D-800C

No fault code found.

-------------------------------------------------------------------------------
Address A9: Struct. Borne Sound (J869)       Labels: 4H0-907-159.clb
   Part No SW: 8K0 907 159     HW: 4H0 907 159 A
   Component: SAS-GEN 2     H06 0005
   Serial number: 120623201064
   ASAM Dataset: EV_SoundActuaGen2AU64X 002005
   ROD: EV_SoundActuaGen2AU64X_002.rod
   VCID: 72BA3872742D42EAC97-8026

No fault code found.

End----------(Elapsed Time: 01:49, VBatt start/end: 13.6V/13.7V)-----------
------------------------------12 Faults Found------------------------------
 
Last edited:
   #2  

Dr Sheldon

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The e380 does not light up and I cannot navigate through the MMI with the control panel, but the reset command (setup + center knob + top right button) does reset the 5f.

And you have a relevant fault code for it
00658 - Control Head 004 - No Signal/Communication

Power Ground & Communication lines are that is required for communication and of course a full functioning E380.
what the hell else could be going on? Unless my wiring is weird somehow,

Weird ? How ?

It is either wired up as it should be or it is wrong - Which is it ? You have the car in front of you ! We cannot see !
Ground is perfect 0.0 ohm - Not a good test - Can the Live and earth light up a 21w bulb ?
Power is 12-13v - Use a bulb

Wake is fluctuating - That is meaningless text !!
LIN to/from static around 5v - LIN is a communication medium - Static is the last thing it should be !! Not sure it should be around 5v - It is a digital square wave signal.
Either your Signal is at fault or your measurement is wrong


Res BT gets fluctuating voltage around 1-3v
Res MU gets 0v and always has Again these so called measurements are all Wiish Washy, Vague and Meaningless.

Your car is an Exact Science but you treat it as dumb !!


You need to make different measurements,

You should be making the Right Measurement, in the Right way, at the Right time, with the Right tool !

That is the Four Rights !!!

If it helps then I would use an oscilloscope because I do not know of any other way to achieve this.
 
   #3  

Dr Sheldon

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he other thing is carbon or vacuum. Idk. Thoughts appreciated before I dig in

I would look first at vacuum - because it easy and unlikely to cause a single cylinder misfire.

Next would be carbon build up ! You can consider that as routine maintenance on that lump !
 
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