1.4 TSI stuttering and misfiring after tune

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Apni
Posts: 7
Joined: Wed May 22, 2024 10:33 pm
I drive a: 1.4 TSI 160
In: Candy White
With a: Manual box

1.4 TSI stuttering and misfiring after tune

Post by Apni »

Hello!

Recently my scirocco 1.4 (CAVD) has been acting up. It all first started when it was a bit of a rainy day, I pushed it to 5k rpm’s and my engine light went flashing. I noticed a power loss and lifted off instantly. After letting the car sit for a few days and going to a couple of mechanics that all had no time. The light cleared itself. It was “cillinder deactivation” and random misfires. I don’t remember de DTC CODES.

After these went away and about 2-3 weeks later driving without any issues I decided to go for a stage 1 tune at a local tuner. No dyno just getting a default file. It drove great with 200hp for about a week. Now since 2 days ago I noticed that especially when the engine is colder it jerks, stutters loses power and is to be honest undrivable. However there are no lights on, no codes or anything. Just audible misfires and the jerking. I have a video of this as well.



Is there anyone that could help me further, it’s a 2010 1.4 manual gearbox with 215000 KM. Had an engine rebuilt about 60k km ago. Spark plugs where changed 7000km ago along with oil filter and air filter. Apart from that the history is unknown
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tre-punti
Posts: 9
Joined: Sun Jun 30, 2024 1:00 pm
I drive a: GT 2.0 TSI
In: Pure White
With a: DSG box
Location: Suffolk

Re: 1.4 TSI stuttering and misfiring after tune

Post by tre-punti »

When you say 'no codes', is that just from the dash, or has it been hooked-up to a diagnostic computer since the problems started?
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Apni
Posts: 7
Joined: Wed May 22, 2024 10:33 pm
I drive a: 1.4 TSI 160
In: Candy White
With a: Manual box

Re: 1.4 TSI stuttering and misfiring after tune

Post by Apni »

tre-punti wrote: ↑Wed Jul 03, 2024 6:13 am When you say 'no codes', is that just from the dash, or has it been hooked-up to a diagnostic computer since the problems started?
I have Carly, only faults it shows is:

Infotainment gateway - non original radio
Front Right Parking light defect , Front Left Parking Light Defect
P04BF - Control Curcuit for Fuel Flap (I had this issue for a while before it jerked)
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tre-punti
Posts: 9
Joined: Sun Jun 30, 2024 1:00 pm
I drive a: GT 2.0 TSI
In: Pure White
With a: DSG box
Location: Suffolk

Re: 1.4 TSI stuttering and misfiring after tune

Post by tre-punti »

You need to get it onto a VAG (or compatible) diagnostic computer IMHO. My first reaction is that this could be an ignition coil problem, but the diagnostics will confirm any misfire (and identify the cylinder affected).
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Apni
Posts: 7
Joined: Wed May 22, 2024 10:33 pm
I drive a: 1.4 TSI 160
In: Candy White
With a: Manual box

Re: 1.4 TSI stuttering and misfiring after tune

Post by Apni »

tre-punti wrote: ↑Wed Jul 03, 2024 7:32 am You need to get it onto a VAG (or compatible) diagnostic computer IMHO. My first reaction is that this could be an ignition coil problem, but the diagnostics will confirm any misfire (and identify the cylinder affected).

I have a hex v2 with vcds (non genuine) I can attempt to see if this shows anything and will update you later today, would you recommend me to get new coils for all 4 cillinders when replacing?
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tre-punti
Posts: 9
Joined: Sun Jun 30, 2024 1:00 pm
I drive a: GT 2.0 TSI
In: Pure White
With a: DSG box
Location: Suffolk

Re: 1.4 TSI stuttering and misfiring after tune

Post by tre-punti »

I can only speak from my own experience, but when I had a Scirocco ignition coil fail, I had all of them replaced. I'd had a previous car (not a VW) where the coils failed one after the other over quite a short time, so I figured I'd get the pain out of the way in one go. If there's a misfire, it doesn't do the spark plug any favours either.
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Apni
Posts: 7
Joined: Wed May 22, 2024 10:33 pm
I drive a: 1.4 TSI 160
In: Candy White
With a: Manual box

Re: 1.4 TSI stuttering and misfiring after tune

Post by Apni »

As an update, here is the VCDS Auto scan

Code: Select all

Wednesday,03,July,2024,13:21:55:00009
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 24.5.0.0 (x64)
Data version: 20240429 DS355.0
www.Ross-Tech.com


VIN: WVWZZZ13Z9V020147   License Plate: 


Chassis Type: 13 (1K0)
Scan: 01 03 08 09 14 15 16 17 19 25 42 44 46 52 56

VIN: WVWZZZ13Z9V020147   Mileage: 215110km-133663miles

01-Engine -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
04-Steering Angle -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: Malfunction 0010
14-Susp. Elect. -- Status: OK 0000
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: Malfunction 0010
25-Immobilizer -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: OK 0000
46-Central Conv. -- Status: Malfunction 0010
52-Door Elect, Pass. -- Status: OK 0000
56-Radio -- Status: OK 0000
 
-------------------------------------------------------------------------------
Address 01: Engine (CAV)       Labels: 03C-906-027-CAV.clb
   Part No SW: 03C 906 027 AT    HW: 03C 906 027 F
   Component: MED17.5.5       G   5859  
   Revision: L1H08---    Serial number: VWX7Z0HN3N60GY
   Coding: 0000072
   Shop #: WSC 66565 257 00032
   VCID: 73E56ACB12B5210E4E-8026
   VINID: 9E69EAAAA043A899800800441C3AAFB3D6

No fault code found.
Readiness: 0010 0000

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104)       Labels:. 1K0-907-379-60EC1F.clb
   Part No SW: 1K0 907 379 AH    HW: 1K0 907 379 AH
   Component: ESP MK60EC1   H31 0107  
   Revision: 00H31001    
   Coding: 743B60F5092400FA2E0C06E890200040300000
   Shop #: WSC 59883 006 1048576
   VCID: 78FF5DE7CBD342567B-802C

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC        Labels: 1K0-907-044.lbl
   Part No SW: 1K0 907 044 DA    HW: 1K0 907 044 DA
   Component: ClimatronicPQ35 133 1213  
   Revision: 00133024    Serial number: 00000000000000
   Shop #: WSC 00000 000 00000
   VCID: 69D908A34079EBDEF4-803C

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect.        Labels:. 3C0-937-049-30-H.lbl
   Part No SW: 3C8 937 049 E    HW: 3C8 937 049 E
   Component: Bordnetz-SG     H54 2602  
   Revision: 00H54000    Serial number: 00000009133884
   Coding: 218E8F0300041A0067960E001900000080097F075C40010C000000000000
   Shop #: WSC 00020 790 00000
   VCID: 3365AACB5235610E8E-8066

   Subsystem 1 - Part No: 1K8 955 119 B  Labels: 1KX-955-119.CLB
   Component: Wischer 071008 022  0602  
   Coding: 00038805
   Shop #: WSC 00020  

2 Faults Found:
02394 - Parking Light Left Front (M1) 
            012 - Electrical Fault in Circuit
             Freeze Frame:
                    Fault Status: 01101100
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 219
                    Mileage: 215044 km
                    Time Indication: 0

             Freeze Frame:
                        ON
                    Voltage: 13.85 V
                        ON
                        ON
                        OFF
                        OFF
                        OFF

02395 - Parking Light Front Right (M3) 
            012 - Electrical Fault in Circuit
             Freeze Frame:
                    Fault Status: 01101100
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 219
                    Mileage: 215044 km
                    Time Indication: 0

             Freeze Frame:
                        ON
                    Voltage: 13.90 V
                        ON
                        ON
                        OFF
                        OFF
                        OFF


-------------------------------------------------------------------------------
Address 14: Susp. Elect. (J250)       Labels:. 3C0-907-376.clb
   Part No SW: 3C0 907 376     HW: 3C0 907 376 
   Component: DAEMPFUNGS-SG H07 0069  
   Revision: 00000000    Serial number: 12110800320002
   Coding: 000180
   Shop #: WSC 00020 790 00000
   VCID: 66C3039F9167C4A6D9-8032

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 1K0-909-605.lbl
   Part No SW: 1K0 909 605 AE    HW: 1K0 909 605 AE
   Component: 0G AIRBAG VW8   020 2300  
   Revision: 05020000    Serial number: 003D1D00J7KX  
   Coding: 0012359
   Shop #: WSC 00020 790 00000
   VCID: 6FED66BB7E9D05EEAA-803A

   Subsystem 1 - Serial number: 6332MSME42131450Y

   Subsystem 2 - Serial number: 6342MSME4213484CA

   Subsystem 3 - Serial number: 6352QSME1E14372EN

   Subsystem 4 - Serial number: 6362QSME31141E125

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel        Labels: 1K0-953-549-MY9.lbl
   Part No SW: 1K0 953 549 CQ    HW: 1K0 953 549 CQ
   Component: J0527           053 0111  
   Coding: 0000034
   Shop #: WSC 00020 790 00000
   VCID: 03053A0B4215118E5E-8056

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 1K0-920-xxx-17.lbl
   Part No SW: 1K8 920 860 D    HW: 1K8 920 860 D
   Component: KOMBIINSTRUMENT VDD 1244  
   Revision: V0003000    Serial number: VWX7Z0HN3N60GY
   Coding: 0005103
   Shop #: WSC 38985 001 1048576
   VCID: 3169A0C3A829531EFC-8064

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway        Labels:. 1K0-907-530-V4.clb
   Part No SW: 1K0 907 530 S    HW: 1K0 907 951 
   Component: J533__Gateway   H16 0210  
   Revision:   H16       Serial number: 34000000000000
   Coding: E9881F06000202004000
   Shop #: WSC 00020 790 00000
   VCID: 377D9EDB464D8D2EB2-8062

1 Fault Found:
01305 - Databus for Infotainment 
            004 - No Signal/Communication
             Freeze Frame:
                    Fault Status: 01100100
                    Fault Priority: 1
                    Fault Frequency: 254
                    Reset counter: 219
                    Mileage: 214611 km
                    Time Indication: 0
                    Date: 2000.00.00
                    Time: 10:35:37


-------------------------------------------------------------------------------
Address 25: Immobilizer        Labels: 1K0-920-xxx-25.clb
   Part No SW: 1K8 920 860 D    HW: 1K8 920 860 D
   Component: IMMO            VDD 1244  
   Revision: V0003000    Serial number: VWX7Z0HN3N60GY
   Shop #: WSC 31594 001 1048576
   VCID: 3169A0C3A829531EFC-8064

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver        Labels:. 1K0-959-701-MAX3.clb
   Part No SW: 1Q0 959 701 F    HW: 1Q0 959 701 F
   Component: Tuer-SG         008 2035  
   Coding: 0016437
   Shop #: WSC 00020 790 00000
   VCID: 377D9EDB464D8D2EB2-8062

No fault code found.

-------------------------------------------------------------------------------
Address 44: Steering Assist        Labels: 1K0-909-14x-GEN3.clb
   Part No: 1K0 909 144 C
   Component: EPS_ZFLS Kl. 174    2301  
   Revision: 00H15000    
   Shop #: WSC 00020 790 00000
   VCID: 2A5BB7AF85FF20C63D-807E

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv.        Labels:. 1K0-959-433-MAX.clb
   Part No SW: 1K0 959 433 BT    HW: 1K0 959 433 BT
   Component:    KSG PQ35 G2  020 0205  
   Revision: 00020000    Serial number: 00000000000000
   Coding: 98900A0002834C7F3F048C0D60084A0BE03CA0
   Shop #: WSC 31594 001 1048576
   VCID: 03053A0B4215118E5E-8056

   Subsystem 1 - Component:   Sounder n.mounted     

   Subsystem 2 - Component:       NGS n.mounted     

   Subsystem 3 - Component:      IRUE n.mounted     

1 Fault Found:
00332 - Control Circuit for Tank Flap 
            007 - Short to Ground
             Freeze Frame:
                    Fault Status: 01100111
                    Fault Priority: 4
                    Fault Frequency: 171
                    Reset counter: 197
                    Mileage: 214616 km
                    Time Indication: 0
                    Date: 2000.00.00
                    Time: 10:41:39


-------------------------------------------------------------------------------
Address 52: Door Elect, Pass.        Labels:. 1K0-959-702-MAX3.clb
   Part No SW: 1Q0 959 702 F    HW: 1Q0 959 702 F
   Component: Tuer-SG         008 2035  
   Coding: 0016436
   Shop #: WSC 00020 790 00000
   VCID: 387F9DE74B538256BB-806C

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio        Labels: None
   Part No SW: 3TD 035 156     HW: 3TD 035 156 
   Component: RadioSK46MID  006 0010  
   Coding: 01000424041000
   Shop #: WSC 00078 790 00000
   VCID: 7F0DB6FBEEFD756E3A-802A

No fault code found.

End-------------------------(Elapsed Time: 01:31)--------------------------
Last edited by Apni on Wed Jul 03, 2024 11:45 am, edited 1 time in total.
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Apni
Posts: 7
Joined: Wed May 22, 2024 10:33 pm
I drive a: 1.4 TSI 160
In: Candy White
With a: Manual box

Re: 1.4 TSI stuttering and misfiring after tune

Post by Apni »

With some further inspection i can see in VCDS that engine readyness status is 0010 0000, the Oxygen Sensor(s) are Failed or Incomplete.

Anything related to misfire recoginition is disbaled and the counter for all the cilinders is 0
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