A4 B8 2.0T intermittent no start

   #1  

alpo

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VCDS Serial number
C?ID=444864
2014 US model intermittently cranks but won't start when warm. Sometimes opening the throttle will help it start. Used to be once a month or so but now it is several times/week. Searched forum and others and the problem shows up in earlier models as a crank position sensor but have not seen a confirmed repair on the B8. Any ideas or help in troubleshooting? Daughter's car bought about a year ago, used 1-owner from original selling dealer (also serviced there); no mods. Thanks for any help. Here is a full VCDS Auto-Scan I pulled last night:

Code:
Monday,14,June,2021,17:31:23:00732
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 21.3.0.0 (x64)  HEX-V2 CB: 0.4543.4
Data version: 20210226 DS325.0
www.Ross-Tech.com


VIN: WAUKFAFLXEN011xxx   License Plate:
Mileage: 181070km-112511mi   Repair Order:



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


Chassis Type: FL-AU48 (8R0)
Scan: 01 02 03 05 08 09 15 16 17 19 36 3C 42 44 46 47 52 53 56 5F
          62 6C 72

VIN: WAUKFAFLXEN011xxx   Mileage: 181070km-112511miles

01-Engine -- Status: Malfunction 0010
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
04-Steering Angle -- Status: OK 0000
05-Acc/Start Auth. -- Status: OK 0000
08-Auto HVAC -- Status: Malfunction 0010
09-Cent. Elect. -- Status: OK 0000
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: Malfunction 0010
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
36-Seat Mem. Drvr -- Status: OK 0000
3C-Lane Change -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: OK 0000
46-Central Conv. -- Status: OK 0000
47-Sound System -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
53-Parking Brake -- Status: OK 0000
56-Radio -- Status: OK 0000
5F-Information Electr. -- Status: OK 0000
62-Door, Rear Left -- Status: OK 0000
6C-Back-up Cam. -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
-------------------------------------------------------------------------------
Address 01: Engine (DET-CPMB)       Labels:. 06H-907-115-CDN.clb
   Part No SW: 8K5 907 115 N    HW: 8K2 907 115 L
   Component: 2.0l R4/4V TF H09 0005
   Revision: ECH09---  
   Coding: 4A2A0013242600062000
   Shop #: WSC 27848 001 1048576
   ASAM Dataset: EV_ECM20TFS0118K5907115N 001006
   ROD: EV_ECM20TFS0118K5907115N.rod
   VCID: 3D2730CECDF18323A45-8068

1 Fault Found:
4106 - Bank 1; System too Rich at Idle
          P2188 00 [096] - -
          Intermittent - Not Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 2
                    Fault Frequency: 1
                    Mileage: 180952 km
                    Date: 2021.06.13
                    Time: 15:47:04

                    Engine RPM: 819.00 /min
                    Normed load value: 29.0 %
                    Vehicle speed: 0 km/h
                    Coolant temperature: 98 °C
                    Intake air temperature: 57 °C
                    Ambient air pressure: 910 mbar
                    Voltage terminal 30: 13.970 V
                    Unlearning counter according OBD: 38
                    Engine status: COENG_RUNNING
                    Engine status-Test_Program_Co Eng st COMPU VERB UBYTE: 3

Readiness: 0000 0000

-------------------------------------------------------------------------------
Address 02: Auto Trans (J217)       Labels:| 0BK-927-156.clb
   Part No SW: 8K0 927 158 T    HW: 0BK 927 156 AL
   Component: 0BK 20TFSIUSA H16 1003
   Revision: --H16---  
   Coding: 000002
   Shop #: WSC 00000 000 00000
   ASAM Dataset: EV_TCMAL551211 002020
   ROD: EV_TCMAL551211_002_AU48.rod
   VCID: 47CB52269F2DD9F30E9-8012

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104)       Labels:. 8K0-907-379-V2.clb
   Part No SW: 8K0 907 379 CF    HW: 8K0 907 379 CF
   Component: ESP8 quattro  H09 0050
   Revision: --------    Serial number: --------------
   Coding: 2D1D1801
   Shop #: WSC 02391 785 00200
   VCID: 7F5B0AC687FD5133F69-802A

No fault code found.

-------------------------------------------------------------------------------
Address 05: Acc/Start Auth. (J393)       Labels:. 8K0-907-064-05.clb
   Part No SW: 8K0 907 064 HP    HW: 8K0 907 064 GP
   Component: BCM2 2.0      H13 0641
   Revision: 00002001  
   Coding: 0D814040000000000000
   Shop #: WSC 02391 785 00200
   VCID: 0557982EE5210BE3BC5-8050

   Subsystem 1 - Part No SW: 8K0 905 852 E    HW: 8K0 905 852 E
   Component: J764 ELV MLB  H40 0046
   Serial number: 0213000286919001  

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 0123
   Revision: C1000000    Serial number: 01270720130522
   Coding: 6480208000
   Shop #: WSC 02391 785 00200
   VCID: 392F24DED959BF0388D-806C

1 Fault Found:
01314 - Engine Control Module
            013 - Check DTC Memory - Intermittent
             Freeze Frame:
                    Fault Status: 00101101
                    Fault Priority: 6
                    Fault Frequency: 1
                    Reset counter: 12
                    Mileage: 179808 km
                    Time Indication: 0
                    Date: 2021.06.01
                    Time: 18:03:35

             Freeze Frame:
                    Temperature: 60.0°C
                    RPM: 760 /min
                    Speed: 0.0 km/h


-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519)       Labels:. 8K0-907-063.clb
   Part No SW: 8K0 907 063 DJ    HW: 8K0 907 063 DJ
   Component: BCM1 1.0      H16 0103
   Revision: 09016001    Serial number: 00000654982902
   Coding: 26000091863CAFE00100488300003D0D0F9CD308A2090221000008004000010200040030000000
   Shop #: WSC 02391 785 00200
   VCID: 7AADFBD29CDF741BC17-802E

   Subsystem 1 - Part No SW: 8K1 955 119 B    HW: 8K1 955 119 B  Labels: 1KX-955-119.CLB
   Component: MITSUBA030713  H18 0461
   Serial number: 13062607021340    
   Coding: 004577

   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: 21615734          
   Coding: 02005D

   Subsystem 3 - Part No SW: 8K0 941 531 AS    HW: 8K0 941 531 AS
   Component: E1 - LDS  H03 0031
   Serial number: 00000000001707130166

   Subsystem 4 - Part No SW: 4G0 907 410 A    HW: 4H0 907 410 A
   Component: USHL4.2  H30 0030
   Serial number: 0000002274555R74RL03

   Subsystem 5 - Part No SW: 8K5 941 329     HW: 8K5 941 329
H01 0031

   Subsystem 6 - Part No SW: 8K5 941 329     HW: 8K5 941 329
H01 0031

   Subsystem 7 - Part No SW: 4H0 907 658     HW: 4H0 907 658
   Component: AQ_Hum_Sensor  H03 0003
   Serial number: F3D8CDB6000000000001

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags (J234)       Labels:| 8K0-959-655.clb
   Part No SW: 8K0 959 655 P    HW: 8K0 959 655 P
   Component: AirbagVW-AU10 H47 0610
   Serial number: 003KJDB09EEH
   Coding: 303844354730303030304A55304C384B3053
   Shop #: WSC 47993 001 1048576
   ASAM Dataset: EV_AirbaECUVWAUDI010 003010
   ROD: EV_AirbaECUVWAUDI010_003_AU48.rod
   VCID: 4ACD6B128C3F249B117-801E

   Seat occupied recognition:
   Subsystem 1 - Part No SW: 8K0 959 339 C    HW: 8K0 959 339 C
   Component: BF-Gewichtss.  H02 0040
   Serial number: 5810000R130000E84G

   Crash sensor for side airbag: driver side:
   Serial number: 6334MSME793344115

   Front Passenger's Side Airbag Crash Sensor:
   Serial number: 6344MSME7C0552229

   Rear Side Airbag Crash Sensor (on driver's side):
   Serial number: 6352QSME074D0574H

   Passenger side rear thorax airbag crash sensor:
   Serial number: 6362QSME54331A66G

   Crash sensor for front airbag: driver side:
   Serial number: 63732SME18423558Z

   Crash sensor for front airbag: front passenger side:
   Serial number: 63832SME54363B46%

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel (J527)       Labels:. 8K0-953-568.clb
   Part No SW: 8K0 953 568 Q    HW: 8K0 953 568 Q
   Component: Lenks.Modul   H03 0003
   Revision: C0062331    Serial number: 90862MGP001P3
   Coding: 000036
   Shop #: WSC 02391 785 00200
   VCID: 48C9511A92B3D68B073-801C

   Component: E221 - MFL  H03 0004

1 Fault Found:
00886 - Turn Signal Switch (E2)
            008 - Implausible Signal - Intermittent
             Freeze Frame:
                    Fault Status: 00101000
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 28
                    Mileage: 180632 km
                    Time Indication: 0
                    Date: 2021.06.10
                    Time: 11:20:34


-------------------------------------------------------------------------------
Address 17: Instruments (J285)       Labels:. 8T0-920-xxx-17.clb
   Part No SW: 8K0 920 983 F    HW: 8K0 920 983 F
   Component: KOMBIINSTR.   H35 0563
   Revision: 00500000    Serial number: WWC71WU7E   
   Coding: 8BB609000B01D705020000
   Shop #: WSC 02391 785 00200
   VCID: 382921DAE253A60B773-806C

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533)       Labels:. 8T0-907-468.clb
   Part No SW: 8R0 907 468 P    HW: 8R0 907 468 D
   Component: GW-BEM 5CAN-M H11 0056
   Revision: 1Z110028    Serial number: 2841Z13712801F
   Coding: 80C303FF00
   Shop #: WSC 02391 785 00200
   VCID: 4CC16D0A86CB3AAB23B-8018

   Subsystem 1 - Part No SW: 8T0 915 181     HW: 8T0 915 181
   Component: J367-BDMHella  H03 8041
   Serial number: 3847051003        

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: 00000068000354
   Coding: 00581B00000000000000
   Shop #: WSC 02391 785 00200
   VCID: 3B233ED6D3658D139A1-806E

No fault code found.

-------------------------------------------------------------------------------
Address 3C: Lane Change (J769)       Labels:| 5Q0-907-566.clb
   Part No SW: 8T0 907 566 B    HW: 8T0 907 566 B
   Component: SWA Master    H05 0071
   Serial number: 0311483909
   Coding: 010211
   Shop #: WSC 02391 785 00200
   ASAM Dataset: EV_LaneChangAssis 001020
   ROD: EV_LaneChangAssis_AU21.rod
   VCID: 3FDB4AC6C7FD9133B69-806A

   Lane change assistance control module 2:
   Subsystem 1 - Part No SW: 8T0 907 568 B    HW: 8T0 907 568 B
   Component: SWA Slave  H05 0071
   Serial number: 0311409987        
   Coding: 010211

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 0305
   Revision: --------    Serial number: --------------
   Coding: 011C13204E00410001
   Shop #: WSC 02391 785 00200
   VCID: 56F58F624807707B85F-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         H38 0507
   Revision: 00001000    Serial number: 0024705773
   Coding: 100000010001
   Shop #: WSC 02391 785 00200
   ASAM Dataset: EV_RCEPSAU48X 008014
   ROD: EV_RCEPSAU48X_008.rod
   VCID: 343115EAFEBB426B5BB-8060

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv. (J393)       Labels:. 8K0-907-064-46.clb
   Part No SW: 8K0 907 064 HP    HW: 8K0 907 064 GP
   Component: BCM2 2.0      H13 0641
   Revision: 00002001    Serial number: 0312160377  
   Coding: 0106023A00FA410580B0013200000000
   Shop #: WSC 02391 785 00200
   VCID: 0557982EE5210BE3BC5-8050

   Subsystem 1 - Part No SW: 8K0 959 719 B    HW: 8K0 959 719
   Component: GTO BF  H01 0080
   Serial number: 00000000000000709350

   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 47: Sound System (J525)       Labels:. 8T0-035-223-BOM.clb
   Part No SW: 8T1 035 223 A    HW: 8T1 035 223 A
   Component: DSP Prem      H05 0030
   Revision: 00005001    Serial number: 94813018061403
   VCID: 2D07008E1D1113A3145-8078

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 0305
   Revision: --------    Serial number: --------------
   Coding: 011C13204E00410001
   Shop #: WSC 02391 785 00200
   VCID: 55F7886E55017B638C5-8000

No fault code found.

-------------------------------------------------------------------------------
Address 53: Parking Brake (----)       Labels: 8K0-907-801-V2.clb
   Part No SW: 8K0 907 801 M    HW: 8K0 907 801 J
   Component: EPB-4         H01 0004
   Revision: --------    Serial number: 30000000083573
   ASAM Dataset: EV_ParkiBrake 001028
   ROD: EV_ParkiBrake_AU48.rod
   VCID: 392F24DED9D9BF0388D-806C

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio (R)       Labels: Redir Fail!
   Part No SW: 4G0 035 082 G    HW: 4G0 035 082
   Component: Radio U SIRIU H60 0133
   Revision: AB001007    Serial number: 156G-0D7830190
   Coding: 020007010000000001
   Shop #: WSC 02391 785 00200
   VCID: 2411E5AA4EDBD2EBCBB-8070

No fault code found.

-------------------------------------------------------------------------------
Address 5F: Information Electr. (J794)       Labels:. 4E0-035-6xx-5F.clb
   Part No SW: 8R1 035 746 D    HW: 8R1 035 746 D
   Component: H-BNT-NA      H40 0738
   Revision: --------    Serial number: 204GZ0D7593207
   Coding: 0F0200000006A1EF55028B4E00000403140000000000000000
   Shop #: WSC 02391 785 00200
   VCID: 382921DAE253A60B773-806C

   Subsystem 1 - Part No: 8R0 060 884 BD
   Component: NAR 2013/2014  0802

   Subsystem 2 - Part No SW: 8R0 919 604 A    HW: 8R0 919 604 A
   Component: DU7 High  H42 0104
   Serial number: A130G-0D2789406   

   Subsystem 3 - Part No SW: 8T0 919 611 L    HW: 8T0 919 611 C
   Component: E0380 Bedient  H02 0030
   Serial number: 00000001580690    

   Subsystem 4 - Part No: 8R0 060 961 F
   Component: CD-Database  5298

No fault code found.

-------------------------------------------------------------------------------
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 0305
   Revision: --------    Serial number: --------------
   Coding: 010C13204000210001
   Shop #: WSC 02391 785 00200
   VCID: 59EF845E39195F03A8D-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: --H08---    Serial number: 525PA8-J36915E
   Coding: 1000006
   Shop #: WSC 02391 785 00200
   VCID: 382921DAEE53A60B773-806C

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 0305
   Revision: --------    Serial number: --------------
   Coding: 010C13204000210001
   Shop #: WSC 02391 785 00200
   VCID: 59EF845E39195F03A8D-800C

No fault code found.

End----------(Elapsed Time: 01:55, VBatt start/end: 13.5V/13.9V)-----------

Code:
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


Readiness Status: 0000 0000
Exhaust Gas Recirculation: Passed
Oxygen Sensor Heating: Passed
Oxygen Sensor(s): Passed
Air Conditioning: Passed
Secondary Air Injection: Passed
Evaporative Emissions: Passed
Catalyst Heating: Passed
Catalytic Converter(s): Passed



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


Readiness Status: 0000 0000
Exhaust Gas Recirculation: Passed
Oxygen Sensor Heating: Passed
Oxygen Sensor(s): Passed
Air Conditioning: Passed
Secondary Air Injection: Passed
Evaporative Emissions: Passed
Catalyst Heating: Passed
Catalytic Converter(s): Passed



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


                Address 01: Engine
Control Module Part Number: 8K5 907 115 N
  Component and/or Version: 2.0l R4/4V TF H09 0005
           Software Coding: 4A2A0013242600062000
            Work Shop Code: WSC 27848
                      VCID: 3D2730CECDF18323A45-8068

Advanced Identification/FAZIT
     Identification: RB8-658
     Revision: ECH09---
     Date: 24.07.13
     Manufacturer number: 1618
     Test stand number: 0568
Flash Status
     Programming Attempts(application): 1/1/1/1/2
     Successful Attempts(application): 1/1/1/1/2
     Flash Date: 17.06.02
Misc.
     Hardware number: 8K2 907 115 L
     Workshop System Name: DET
     ASAM Dataset: EV_ECM20TFS0118K5907115N
     ASAM Dataset Revision: 001006
Car Info
     Chassis Number: WAUKFAFLXEN011643
     Engine code: CPMB
VCDS Info:
       VCID: 3D2730CECDF18323A45-8068
       Labels: 06H-907-115-CDN.clb
       Readiness: No script available
       ROD: EV_ECM20TFS0118K5907115N.rod
 
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   #2  

Jef

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Is there a gasoline odor in the engine oil? Doing a fuel rail pressure test, do you get good results?

 
   #3  

DrPeter

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Hello,

Thanks for posting your question and including the full vehicle Auto-Scan!

The fault code in the [01-Engine], P2188- Bank 1; System too Rich at Idle, could be an indication there is an external source of fuel entering into the combustion chamber. This is typically happening when one (or both) of the following is happening:

1) N80-EVAP Canister Purge Regulator Valve is leaking small amounts of fuel vapor into the intake.
(Sometime the EVAP, small leak code sets when this happens)

2) Fuel has contaminated the oil and the breather system is 'feeding' the engine the extra fuel/crankcase gases
(HPFP- High Pressure Fuel Pumps can weep fuel in to the engine crankcase, check the oil for fuel smell/overfull!)

3) Leaking Injector, check fuel rail pressures when hot after the key is on, engine is off, pressures should rise.

I would also not rule out any of the possible causes found here, on this Ross-Tech wiki page too...
http://wiki.ross-tech.com/wiki/index.php/16556/P0172/000370


You can use VCDS to view the Advanced Measuring Values and compare them to this 'Non-Broken Car'
https://forums.ross-tech.com/index.php?threads/21275/

Look for: "Long term adaptation of mixture formation bank 1" - should be under (+/-) 10% when above 80°C

Hope this helps,

drpeter
 
   #4  

alpo

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Thanks, Jef and Dr. Peter! I will run the fuel smell and pressure tests when I can get my hands on the car again, probably tomorrow night. This diagnosis may drag out a bit because I will be away from the car Thurs - Sat. I appreciate the response.
 
   #5  

alpo

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Ok, I have the car for a bit. No fuel smell in oil. Fuel rail pressure test appears to be ok. With UDS protocol the pressures were in mpa, not bar. Hot running pressure was very close to 4 MPa which was also the specified value; 2 min after shutdown it had risen to nearly 5 MPa and was still climbing.
 
   #6  

Jef

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Your results of the fuel rail pressure test implies leaking injectors. Generally speaking, one should expect a 20 bar increase in 2 minutes with a hot engine where as you state you didn't even make it +10 bar in 2 minutes.

Now having said that, IMHO injectors leaking at that rate wouldn't cause an extended cranking.... I've seen worse test results and engines still fire right up.

Double check your testing. I would use IDE00589-ENG167462 Fuel pressure (search for 00589), it will be a kPa value, something like 3500 to 4000 kpa would be my guess at idle (35 to 40 bar).

If you kind of end up with the same results, hot engine off, round about 5000 kPa after 2 minutes, again, not looking good for the injectors but I don't see that flooding the engine out.

Maybe a cam position sensor issues.... but no codes so not too likely.
 
   #7  

alpo

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Thanks, Jef. I'll repeat the test on Sunday. If still a bit low, would running injector cleaner in the fuel help out?
 
   #8  

alpo

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Jef and DrPeter, I repeated the test today with worse results. Here is the hot running idle snapshot:

Address 01: Engine (8K5 907 115 N)

13:58:09
IDE00021 Engine RPM 799 /min
IDE00025 Coolant temperature 99 °C
IDE00188 Fuel high-pressure: actual value 3.9940 MPa
IDE00201 High fuel pressure: specified value 4.0000 MPa
IDE00407-ENG57549 Rail pressure regulation: status-Bits 0-7 1
IDE00589 Fuel pressure 3950 kPa rel

Engine off, 2.5 min after shutdown:

14:00:40
IDE00021 Engine RPM 0 /min
IDE00025 Coolant temperature 102 °C
IDE00188 Fuel high-pressure: actual value 3.9690 MPa
IDE00201 High fuel pressure: specified value 3.9680 MPa
IDE00407-ENG57549 Rail pressure regulation: status-Bits 0-7 0
IDE00589 Fuel pressure 3870 kPa rel

5.5 min:

14:03:41
IDE00021 Engine RPM 0 /min
IDE00025 Coolant temperature 100 °C
IDE00188 Fuel high-pressure: actual value 4.2095 MPa
IDE00201 High fuel pressure: specified value 3.9680 MPa
IDE00407-ENG57549 Rail pressure regulation: status-Bits 0-7 0
IDE00589 Fuel pressure 4110 kPa rel

So, looks like injectors are leaking down, correct? Any other possibilities?
Thanks.
 
   #9  

Jef

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It does appear the injectors are leaking.... 3.9940 MPA (40 BAR) at idle, then +2 minutes after shutting the engine off... still right at 40BAR. Fuel rail pressure should of been hitting around 6.000MPa (60 BAR) at the 2 minute mark.

Now I've consulted with a lot of people dealing with leaking injectors, many with worse numbers than what you are posting, and the cars still start up fine. We are kind of of in a grey area in that, IMHO you most likely need all new injectors (purchased from the dealer), but I can't be sure that will resolve the extending cranking.
 
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alpo

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Thanks, Jef. Interesting that injectors would have to be replaced. Does injector cleaner not work for this situation? Pretty sad when injectors only last 100k miles.
 
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WtA3WtQ5

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A heavy dose of injector cleaner (Techron) won't hurt anything and may just help. Worth a try for how easy and cheap to do.
It may postpone changing out injectors so you can do it on your schedule.
 
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alpo

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That's what I was thinking; thanks. It's already in the tank!
 
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