1.9TDi warm starting problem

[skoda survivor]

1.9tdi Elegance Estate 2001 has started to be difficult starting when warm. The engine turns over easily enough. It feels as if there is no fuel being fed to the engine! I had thought it was the load sensor wire as I found this to be broken - since repaired but not effect on starting. If anyone has had this problem, I would be grateful for the solution.

many thanks.

[chris-H]

Engine coolant temperature sensor most probably knackered. Easy to change , around 25 notes for OE part.

[jgraf94]

Sounds like the coolant temp sensor! solved all sort's of niggly issues with my 1.9tdi pd100

 

I paid about a £5 for a non OE part (trade price) but they should be available for under a tenner!

 

Such a strange part

[whitep]

Coolant sensor or ASV stuck shut or timing

[skoda survivor]

Thanks for the help everyone.

I have changed the coolant temp sensor and still getting same problem. Engine wont start when beginning to warm up. Starts fine when cold!

What is the ASV which Green Briskodian suggests may be stuck shut?

Many thanks

[chris-H]

did you get this sorted ? maybe daft question but when were the glow plugs last changed ?

[Dean-]

did you get this sorted ? maybe daft question but when were the glow plugs last changed ?

 

Would it need the Glow plugs though to start the car when the engine is hot? Surly he would have bigger problems when starting from cold.

[felicia16v]

if the ASV gets stuck the engine spins over with no compression, so goes really fast on the starter. Sounds like you need someone with vcds to plug in and make sure first the temps read correctly and then see what the cranking rpm is, as a worn starter will not quite spin it fast enough to catch when warm (it is possible to work around this with MPPS and tweaking the map tho).

[trundlenut]

What is the battery like? IIRC the ecu chucks fuel straight away from cold but when warm the engine has to be turning over at 250rpm or more before fuel injection starts.

Sent from my Nexus 4 using Tapatalk

[littleade]

+1 on the above. Also it could be the starter motor on the way out, so again the engine isn't cranking fast enough to allow the ECU provide fuel

[trundlenut]

when the engine is warm try unplugging the CTS and see if it starts OK.

[skoda survivor]

Hi guys, Thanks for all the good advice. Problem still not solved!

Starter motor ok I have even tried starting from warm with a mains cranker/charger. Engine turns quickly but not starting. I have changed the temp sensor. The EGR solenoid seems to be working in that it opens fully after 3 seconds after switching off. It does not get stuck as I have checked with the air pipe off. Could the MAF sensor cause the engine not to start when warm?

many thanks

[Steve Neate]

Are there any error codes stored on the ecu?

 

SN

[felicia16v]

disconnect the coolant temp sensor next time it doesn't start and see if that helps.

[skoda survivor]

I've now done a scan with VCDS-Lite.  Results are below:

 

VCDS-Lite Version: Release 1.2

Monday, 28 April 2014, 17:17:23:18549

 

 

Chassis Type: 6Y - Skoda Fabia I

Scan: 01,02,03,08,09,15,17,19,25,37,44,46,55,56,76

 

-------------------------------------------------------------------------------

Address 01: Engine       Labels: 038-906-019-AJM.LBL

   Controller: 038 906 019 AF

   Component: 1,9l R4 EDC 0000SG  1110

   Coding: 00002

   Shop #: WSC 13765

   VCID: 5BC95C1ADA3D

   TMBGS46Y823332671     SKZ7Z0A1020948

4 Faults Found:

19463 -  Camshaft Position Sensor (G40): No Signal

            P3007 - 35-10 -   - - Intermittent

17552 -  Mass Air Flow Sensor (G70): Open or Short to Ground

            P1144 - 35-00 -   -

17664 -  Engine Coolant Temp Sensor (G62): Open or Short to Plus

            P1256 - 35-00 -   -

17571 -  Fuel Temp Sensor (G81): Open or Short to Plus

            P1163 - 35-00 -   -

Readiness: N/A

 

-------------------------------------------------------------------------------

Address 03: ABS Brakes       Labels: 6Q0-907-37x-ABS.LBL

   Controller: 6Q0 907 379 D

   Component: ABS/ASR 5.7 FRONT   V00

   Coding: 00188

   Shop #: WSC 13765

   VCID: 3E0FF58E296F

No fault code found.

 

-------------------------------------------------------------------------------

Address 08: Auto HVAC       Labels: 6Q0-820-045.LBL

   Controller: 6Y0 820 045

   Component: Klimaanlage        X0760

   VCID: F29791BEADB7

No fault code found.

 

-------------------------------------------------------------------------------

Address 09: Cent. Elect.       Labels: 6Qx-937-049-B.LBL

   Controller: 6Q1 937 049 B

   Component: BORDNETZ-SG.        1S31

   Coding: 25786

   Shop #: WSC 13765

   VCID: 3A07F99E3547

4 Faults Found:

00511 -  Selector Lever (E313)

            49-00 -  No Communications

00778 -  Steering Angle Sensor (G85)

            49-00 -  No Communications

01324 -  Control Module for All Wheel Drive (J492)

            49-00 -  No Communications

01309 -  Power Steering Control Module (J500)

            49-00 -  No Communications

 

-------------------------------------------------------------------------------

Address 15: Airbags       Labels: 6Q0-909-605-VW5.LBL

   Controller: 1C0 909 601 C

   Component: 02 AIRBAG VW51        01

   Coding: 12338

   Shop #: WSC 13765

   VCID: 20332BF6B3DB

1 Fault Found:

00532 -  Supply Voltage B+

            07-10 -  Signal too Low - Intermittent

 

-------------------------------------------------------------------------------

Address 17: Instruments       Labels: 6Yx-9xx-xxx-17.LBL

   Controller: 6Y2 919 870 D

   Component: KOMBIINSTRUMENT VDO V09

   Coding: 22441

   Shop #: WSC 65769

   VCID: 5BC95C1ADA3D

   TMBGS46Y823332671     SKZ7Z0A1020948

No fault code found.

 

-------------------------------------------------------------------------------

Address 19: CAN Gateway       Labels: 6N0-909-901-19.LBL

   Controller: 6N0 909 901

   Component: Gateway K<->CAN    1S31

   Coding: 00014

   Shop #: WSC 13765

   VCID: F0939BB6A3BB

4 Faults Found:

00511 -  Selector Lever (E313)

            49-00 -  No Communications

00778 -  Steering Angle Sensor (G85)

            49-00 -  No Communications

01324 -  Control Module for All Wheel Drive (J492)

            49-00 -  No Communications

01309 -  Power Steering Control Module (J500)

            49-00 -  No Communications

 

-------------------------------------------------------------------------------

Address 25: Immobilizer       Labels: None

   Controller: Bit teA dre ss

   Component: e 17 eingeben         

   VCID: 5AC7591ED507

No Faults Found

  or DTCs not supported by controller

  or a communication error ocurred

 

-------------------------------------------------------------------------------

Address 46: Central Conv.       Labels: 6Q0-959-433.LBL

   Controller: 6Q0 959 433 C

   Component: 0J Komfortgerát     0003

   Coding: 00259

   Shop #: WSC 13765

   VCID: 3B09FC9A3A7D

8 Faults Found:

01134 -  Alarm Horn (H12)

            37-00 -  Faulty

01330 -  Central Control Module for Central Convenience (J393)

            52-10 -  Supply Voltage Too High - Intermittent

01330 -  Central Control Module for Central Convenience (J393)

            53-10 -  Supply Voltage Too Low - Intermittent

01331 -  Door Control Module; Driver Side (J386)

            53-10 -  Supply Voltage Too Low - Intermittent

01332 -  Door Control Module; Passenger Side (J387)

            53-10 -  Supply Voltage Too Low - Intermittent

01333 -  Door Control Module; Rear Left (J388)

            53-10 -  Supply Voltage Too Low - Intermittent

00934 -  Electric Window Motor; Rear Left (V26)

            08-10 -  Control Limit Surpassed - Intermittent

01334 -  Door Control Module; Rear Right (J398)

            53-10 -  Supply Voltage Too Low - Intermittent

 

End   --------------------------------------------------------------------------------------------------

[trundlenut]

Where the CTS and MAF disconnected when you did that scan?

Sent from my Nexus 4 using Tapatalk

[alex_e3]

A couple of years back I had an intermittent problem with starting when warm. Like your symptoms the engine would just turn for a while before firing. The problem turned out to be a faulty cam sensor. They're easy and cheap enough to replace. Plus it's come up on your VCDS log.

[skoda survivor]

Guys,

Again many thanks for replying to my last posting, it's much appreciated.

Last night I re-ran VCDS having checked the relays under the dash, all fuses and re plugged all the connectors in the engine compartment and inside.

I was suprised to find that the engine faults had cleared! Only the EPS remains a problem. Life is not that simple is it! Ran the engine up to running temperature, switched off and found that it did not want to start until the 3rd attempt.

The CTS & MAF sensors were connected as were all the sensors when I re-ran the diagnostics.

I have read that the steering angle sensor can play havoc with the electrics if it is faulty. I think I will replace this sensor as it is still showing up as a fault.

I was wondering if VW/Skoda got Microsoft to write the coding for the ECU & installed some version of windows, If so it would answer why we have these problems!

 

VCDS print out:

VCDS-Lite Version: Release 1.2

Tuesday, 29 April 2014, 20:05:51:18549

 

 

Chassis Type: 6Y - Skoda Fabia I

Scan: 01,02,03,08,09,15,17,19,25,37,44,46,55,56,76

 

-------------------------------------------------------------------------------

Address 01: Engine       Labels: 038-906-019-AJM.LBL

   Controller: 038 906 019 AF

   Component: 1,9l R4 EDC 0000SG  1110

   Coding: 00002

   Shop #: WSC 13765

   VCID: 5BC95C1ADA3D

   TMBGS46Y823332671     SKZ7Z0A1020948

No fault code found.

Readiness: N/A

 

-------------------------------------------------------------------------------

Address 03: ABS Brakes       Labels: 6Q0-907-37x-ABS.LBL

   Controller: 6Q0 907 379 D

   Component: ABS/ASR 5.7 FRONT   V00

   Coding: 00188

   Shop #: WSC 13765

   VCID: 3E0FF58E296F

No fault code found.

 

-------------------------------------------------------------------------------

Address 08: Auto HVAC       Labels: 6Q0-820-045.LBL

   Controller: 6Y0 820 045

   Component: Klimaanlage        X0760

   VCID: F29791BEADB7

No fault code found.

 

-------------------------------------------------------------------------------

Address 09: Cent. Elect.       Labels: 6Qx-937-049-B.LBL

   Controller: 6Q1 937 049 B

   Component: BORDNETZ-SG.        1S31

   Coding: 25786

   Shop #: WSC 13765

   VCID: 3A07F99E3547

4 Faults Found:

00511 -  Selector Lever (E313)

            49-00 -  No Communications

00778 -  Steering Angle Sensor (G85)

            49-00 -  No Communications

01324 -  Control Module for All Wheel Drive (J492)

            49-00 -  No Communications

01309 -  Power Steering Control Module (J500)

            49-00 -  No Communications

 

-------------------------------------------------------------------------------

Address 15: Airbags       Labels: 6Q0-909-605-VW5.LBL

   Controller: 1C0 909 601 C

   Component: 02 AIRBAG VW51        01

   Coding: 12338

   Shop #: WSC 13765

   VCID: 20332BF6B3DB

No fault code found.

 

-------------------------------------------------------------------------------

Address 17: Instruments       Labels: 6Yx-9xx-xxx-17.LBL

   Controller: 6Y2 919 870 D

   Component: KOMBIINSTRUMENT VDO V09

   Coding: 22441

   Shop #: WSC 65769

   VCID: 5BC95C1ADA3D

   TMBGS46Y823332671     SKZ7Z0A1020948

No fault code found.

 

-------------------------------------------------------------------------------

Address 19: CAN Gateway       Labels: 6N0-909-901-19.LBL

   Controller: 6N0 909 901

   Component: Gateway K<->CAN    1S31

   Coding: 00014

   Shop #: WSC 13765

   VCID: F0939BB6A3BB

4 Faults Found:

00511 -  Selector Lever (E313)

            49-00 -  No Communications

00778 -  Steering Angle Sensor (G85)

            49-00 -  No Communications

01324 -  Control Module for All Wheel Drive (J492)

            49-00 -  No Communications

01309 -  Power Steering Control Module (J500)

            49-00 -  No Communications

 

-------------------------------------------------------------------------------

Address 25: Immobilizer       Labels: None

   Controller: Bit teA dre ss

   Component: e 17 eingeben         

   VCID: 5AC7591ED507

No Faults Found

  or DTCs not supported by controller

  or a communication error ocurred

 

-------------------------------------------------------------------------------

Address 46: Central Conv.       Labels: 6Q0-959-433.LBL

   Controller: 6Q0 959 433 C

   Component: 0J Komfortgerát     0003

   Coding: 00259

   Shop #: WSC 13765

   VCID: 3B09FC9A3A7D

8 Faults Found:

01134 -  Alarm Horn (H12)

            37-10 -  Faulty - Intermittent

01330 -  Central Control Module for Central Convenience (J393)

            52-10 -  Supply Voltage Too High - Intermittent

01330 -  Central Control Module for Central Convenience (J393)

            53-10 -  Supply Voltage Too Low - Intermittent

01331 -  Door Control Module; Driver Side (J386)

            53-10 -  Supply Voltage Too Low - Intermittent

01332 -  Door Control Module; Passenger Side (J387)

            53-10 -  Supply Voltage Too Low - Intermittent

01333 -  Door Control Module; Rear Left (J388)

            53-10 -  Supply Voltage Too Low - Intermittent

00934 -  Electric Window Motor; Rear Left (V26)

            08-10 -  Control Limit Surpassed - Intermittent

01334 -  Door Control Module; Rear Right (J398)

            53-10 -  Supply Voltage Too Low - Intermittent

 

End   ------------------------------------------------------------------------------------------------

Again thanks for your continued advice.

James

[skoda survivor]

Problem finally solved! I have replaced the following:

1. Relays
2. Starter motor
3. Camshaft sensor
4. Speed sensor
5. Coolant Temp sensor
6. Battery
7. Power steering pump
8. Steering Angle sensor

I discovered the replacement camshaft sensor was faulty. Car now running like it should.

Thanks everyone for all their advice and help, much appreciated.

[vindaloo]

Bloody hell, that's quite a journey to discover that a new, replacement part is on ther fritz.

Is it certain that it is/was the sensor? Wiring in the car is 12+ years old now. And the 1.9TDI isn't the smoothest of 4 potters.

 

Glad to read it's now behaving more reasonably.