RANDOM NO START

[DPATE]

I have a 2003 Passat V-6 with about 110,000. It runs great but randomly it won't start. It cranks and turns over fine but don't seem to be firing. If I try over and over enough times it starts. I replaced the coil pack with an aftermarket one. It ran better than ever and started every time for about two weeks then went back to random no start. . I was asked if I had a VCDS to scan it. I didn't so I ordered one. It gives me these codes...

19537 Engine temperature too low
P3081-35-00

17801 Ignition Coil Power Output 1
P1393-35-00 Electrical Malfunction

17802 Ignition Coil Power Output 2
P1394-35-00 Electrical Malfunction

17803 Ignition Coil Power Output 3
P1395-35-00 Electrical Malfunction

Where do I start? Temp sender? Another coil pack??

 

[stefdds]

Where do I start?

Greetings and Welcome and thanks for the information, but......, You need to post a complete and unedited Auto-Scan. Please see the Blue tool bar at the top of this page "How-To" , click on it and a pull down menu will display, choose How to post a Auto-Scan. That way, all the VW members can see what they are dealing with and then they will advise accordingly.

 

[DPATE]

It sounds very complicated and I am not sure I follow it all but I will attempt to.

 

[PetrolDave]

It sounds very complicated and I am not sure I follow it all but I will attempt to.

Just click on the </> icon and a new box will open for you to paste the text of the Auto-Scan

 

[stefdds]

It sounds very complicated and I am not sure I follow it all but I will attempt to.

Sounds good, and don't worry about a couple of attempts if it doesn't display well ; Admin. "will clean it up" (per your request) if it gets a bit messy!

 

[DPATE]

I did it!

Saturday,24,September,2022,12:48:24:11174
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 22.9.0.0 (x64)  HEX-V2 CB: 0.4623.4
Data version: 20220830 DS341.0
www.Ross-Tech.com


VIN: WVWYH63B63E016688   License Plate: 


Chassis Type: 3B (3B - VW Passat B5 (1997 > 2005))
Scan: 01 02 03 08 15 16 17 19 35 36 37 46 47 55 56 57 58 75 76 77
         
 
VIN: WVWYH63B63E016688   Mileage: 193650km-120328miles
-------------------------------------------------------------------------------
Address 01: Engine        Labels: 078-907-551-ATQ.lbl
   Part No: 3B0 907 551 CR
   Component: 2.8L V6/5V      G   0002  
   Coding: 07251
   Shop #: WSC 05311  
   VCID: 75B7EDC0FCD38CC3C45-5160
   WVWYH63B63E016688     VWZ7Z0B5367981

6 Faults Found:
17530 - Oxygen (Lambda) Sensor Heating; B2 S2 
            P1122 - 35-00 - Open Circuit
17548 - Oxygen (Lambda) Sensor; B2 S2 
            P1140 - 35-00 - Internal Resistance too High
19537 - Engine Temperature too Low 
            P3081 - 35-00 - 
17801 - Ignition Coil Power Output 1 
            P1393 - 35-00 - Electrical Malfunction
17802 - Ignition Coil Power Output 2 
            P1394 - 35-00 - Electrical Malfunction
17803 - Ignition Coil Power Output 3 
            P1395 - 35-00 - Electrical Malfunction
Readiness: 0000 0000

-------------------------------------------------------------------------------
Address 02: Auto Trans        Labels: 01V-927-156.lbl
   Part No: 3B0 927 156 AK
   Component: AG5 01V 2.8l5V  USA 3940  
   Coding: 00102
   Shop #: WSC 05311  
   VCID: 6FBBDFA89E8FB6130E9-5160

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 8E0-614-111-EDS.lbl
   Part No: 8E0 614 111 A
   Component: ABS/EDS 5.3 QUATTRO D10  
   Shop #: BB 24334  
   VCID: 1C61D8643FB97D8B1BB-51CE

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC        Labels: 3Bx-907-044.lbl
   Part No: 3B1 907 044 J
   Component: CLIMATRONIC B5GP    0005  
   Coding: 17200
   Shop #: WSC 05311  
   VCID: 2809F4B47BE1A12B8F3-5184

5 Faults Found:
00603 - Footwell/defroster Flap Positioning Motor (V85) 
            37-00 - Faulty
01271 - Positioning Motor for Temperature Flap (V68) 
            37-00 - Faulty
01272 - Positioning Motor for Central Flap (V70) 
            37-00 - Faulty
01274 - Air Flow Flap Positioning Motor (V71) 
            37-00 - Faulty
01341 - Control Module in Instrument Panel On Comfort CAN (J285) 
            27-10 - Implausible Signal - Intermittent

-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 6Q0-909-605-VW5.lbl
   Part No: 1C0 909 605 C
   Component: 09 AIRBAG VW61 04   0001  
   Coding: 12345
   Shop #: WSC 05311  
   VCID: 2411E08407C9454BA3B-513C

1 Fault Found:
00532 - Supply Voltage B+ 
            07-10 - Signal too Low - Intermittent

-------------------------------------------------------------------------------
Address 16: Steering wheel        Labels: 1J0-907-487-A.lbl
   Part No: 1J0 907 487 A
   Component: Lenkradelektronik   0004  
   Coding: 00118
   Shop #: WSC 05314  
   VCID: 2F3B1FA85E0FF6134E9-523C

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 3B0-920-xx5-17.lbl
   Part No: 3B0 920 927 B
   Component: KOMBI+WEGFAHRSP VDO V08  
   Coding: 07235
   Shop #: WSC 00000  
   VCID: 2411E08407C9454BA3B-513C
   WVWYH63B63E016688     VWZ7Z0B5367981

1 Fault Found:
01039 - Coolant Temperature Sensor (G2) 
            30-10 - Open or Short to Plus - Intermittent

-------------------------------------------------------------------------------
Address 19: CAN Gateway        Labels: 6N0-909-901-19.clb
   Part No: 6N0 909 901 
   Component: Gateway K<->CAN    0001  
   Coding: 00004
   Shop #: WSC 05314  
   VCID: 70B9DCD483B1A9EB173-513C

No fault code found.

-------------------------------------------------------------------------------
Address 36: Seat Mem. Drvr        Labels: 3B1-959-760.lbl
   Part No: 3B1 959 760 E
   Component: Sitzverstellung     0301  
   Shop #: WSC 00000 000 00000
   VCID: 2F3B1FA85B0FF6134E9-513C

3 Faults Found:
01008 - Note; Emergency OFF Switch is Active! 
            000 - - - Intermittent
01010 - Sensor for Driver's Seat Recline (G219) 
            011 - Open Circuit
00998 - Motor for Driver's Seat Recline (V45) 
            000 - -

-------------------------------------------------------------------------------
Address 46: Central Conv.        Labels: 1C0-959-799.lbl
   Part No: 1C0 959 799 C
   Component: 81 Komfortgerát HLO 0003  
   Coding: 00258
   Shop #: WSC 05311  
   VCID: 372B27C8A65F3ED3169-4B1E

   Subsystem 1 - Part No: 1C0959801
   Component: 81 Tõrsteuer.FS KLO 0004  

   Subsystem 2 - Part No: 1C0959802A
   Component: 81 Tõrsteuer.BF KLO 0006  

   Subsystem 3 - Part No: 1C0959811
   Component: 81 Tõrsteuer.HL KLO 0004  

   Subsystem 4 - Part No: 1C0959812
   Component: 81 Tõrsteuer.HR KLO 0004  

3 Faults Found:
00928 - Locking Module for Central Locking; Front Driver Side (F220) 
            27-10 - Implausible Signal - Intermittent
00929 - Locking Module for Central Locking; Front Passenger Side (F221) 
            27-10 - Implausible Signal - Intermittent
00931 - Locking Module for Central Locking; Rear Right (F223) 
            27-00 - Implausible Signal

-------------------------------------------------------------------------------
Address 56: Radio        Labels: 3B7-035-1xx-56.lbl
   Part No: 3B7 035 180 
   Component:    Radio NP2        0055  
   Coding: 04031
   Shop #: WSC 05311  
   VCID: 5DE7956064233483AC5-513C

No fault code found.

End----(Elapsed Time: 04:10, VBatt start/end: 11.9V/12.0V. VIgn 11.9V)-----

 

[DPATE]

I'm attempting to replace the temp sensor now. Afterward should I clear the codes and drive it?

 

[Uwe]

Afterward should I clear the codes and drive it?

I would. But I suspect there's also an issue with the ignition circuitry for bank 1 of your engine that will need to be addressed.

-Uwe-