009218 - EVAP Leak Detection Pump Control Circuit P2402

   #1  

ahidley

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009218 - EVAP Leak Detection Pump Control Circuit
P2402

I've done a smoke test and saw no leaks. I went into the vcds under 1 aka engine, and did an ouput test and the n80 and leak detection pump, located behind right rear inner fender, both tested ok. But the test tested it 60 times, i.e. clicking the relay and reported no failures. I replaced the n80 valve and still have the p2402 code but now when doing the output test the relay only clicks once and then counts to 60 and results in passing. That seems odd to me. I then replaced the leak detection pump located behind the right rear inner fender . Any help, thoughts, possibilities would help. Thanks
Code:
Monday,05,May,2025,18:44:11:15949
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 11 x64
VCDS Version: 25.3.0.4 (x64)  HEX-V2 CB: 0.4660.4
Data version: 20250311 DS365.0
www.Ross-Tech.com


VIN: WAUDH78EX7A103186   License Plate:
Mileage: 296840km-184447mi   Repair Order:



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


Chassis Type: 8E (8E - Audi A4/S4/RS4 B6/B7 (2001 > 2008))
Scan: 01 02 03 08 09 0F 11 15 16 17 18 25 36 37 45 46 55 56 57 65
          67 69 75 76 77
 
VIN: WAUDH78EX7A103186   Mileage: 296840km-184447miles
-------------------------------------------------------------------------------
Address 01: Engine (AUK)       Labels:. 06E-910-559-BKH.clb
   Part No SW: 8E1 910 559 F    HW: 8E0 907 559 J
   Component: 3.2l V6 FSI         0080 
   Revision: --H19---    Serial number:               
   Coding: 01040109180F0120
   Shop #: WSC 40636 444 999999
   VCID: 313F07F99D2ABE52309-8064
   VINID: 9D1954607215A074410030481879395D91

1 Fault Found:
009218 - EVAP Leak Detection Pump Control Circuit
               P2402 - 006 - Short to Plus - MIL ON
             Freeze Frame:
                    Fault Status: 10100001
                    Fault Priority: 4
                    Fault Frequency: 2
                    Reset counter: 40
                    Mileage: 296768 km
                    Time Indication: 0

             Freeze Frame:
                    RPM: 1280 /min
                    Mass Air / Rev.: 305.2 mg/str
                    Temperature: 18.0 C
                        Idle
                    Voltage: 14.18 V
                    Speed: 0.0 km/h

Readiness: 0000 0100

-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 8E0-910-517.clb
   Part No SW: 8E0 910 517 J    HW: 8E0 614 517 BH
   Component: ESP8 quattro    H06 0140 
   Revision: 00000000    Serial number: 00000000000000
   Coding: 0004379
   Shop #: WSC 06335 000 00000
   VCID: 2E051C858C14A1AA2DB-807A

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC        Labels: 8E0-820-043.lbl
   Part No: 8E0 820 043 BM
   Component:   A4 Klimaautomat   2833 
   Coding: 00000
   Shop #: WSC 00000 
   VCID: 6D87DB8944821AB2541-50D0

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect.        Labels: 8E0-907-279-8EC.lbl
   Part No: 8E0 907 279 N
   Component: int. Lastmodul  USA 0907 
   Coding: 01023
   Shop #: WSC 65536 
   VCID: 3D272BC954624A32A41-4AA4

No fault code found.

-------------------------------------------------------------------------------
Address 0F: Digital Radio        Labels: 8E0-035-593-SIR.lbl
   Part No SW: 8E0 035 593 F    HW: 8E0 035 593 F
   Component: SDAR SIRIUS         0120 
   Serial number: AUZ4Z7F1040029
   Shop #: WSC 00000 000 00000
   VCID: 2C01168DBA28D3BA03F-5160

1 Fault Found:
02635 - Tuner Not Enabled/Activated
            000 - -

-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 8E0-959-655-94.lbl
   Part No SW: 8E0 959 655 H    HW: 8E0 959 655 H
   Component:    Airbag 9.41  H12 3840 
   Revision: 91H12384    Serial number: 0036N0G0CZZ1 
   Coding: 0032607
   Shop #: WSC 06325 000 00000
   VCID: 3C2126CD4A68433A93F-8068

   Subsystem 1 - Part No: 8E0 910 339 B
   Component: BF-Gewichtsens. 002 0070

   Subsystem 2 - Serial number: 3B9PA         

   Subsystem 3 - Serial number: 0001.01.000000200000000000  63

   Subsystem 4 - Serial number: 000000  6332DRB403D98AAC5  63

   Subsystem 5 - Serial number: 98AAC5  6342DRB403DBD2A6%  63

   Subsystem 6 - Serial number: BD2A6%  6352ARB401B2E46FZ  63

   Subsystem 7 - Serial number: 2E46FZ  6362ARB401B15180A  63

   Subsystem 8 - Serial number: 15180A  63729RB401AD4AB4-  63

   Subsystem 9 - Serial number: D4AB4-  63829RB401AD4AB7/

   Subsystem 10 - Serial number: D4AB7/

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel        Labels: 8E0-953-549.lbl
   Part No: 8E0 953 549 Q
   Component: Lenks ulenmodul     0701 
   Coding: 04041
   Shop #: WSC 06325 
   VCID: 41DF5739289A2ED2C09-4AA4

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 8E0-920-9xx-8EC.clb
   Part No SW: 8E0 920 951 G    HW: 8E0 920 951 G
   Component: KOMBI+WFS 4     H14 0120 
   Revision: 0120        Serial number: 00000000000000
   Coding: 0023261
   Shop #: WSC 06436 444 84396
   VCID: 2E051C858C04A1AA2DB-5118

No fault code found.

-------------------------------------------------------------------------------
Address 25: Immobilizer        Labels: 8E0-920-9xx-8EC.clb
   Part No SW: 8E0 920 951 G    HW: 8E0 920 951 G
   Component: KOMBI+WFS 4     H14 0120 
   Revision: 0120        Serial number: 00000000000000
   Coding: 0023261
   Shop #: WSC 06436 444 84396
   VCID: 2E051C858C04A1AA2DB-5118

No fault code found.

-------------------------------------------------------------------------------
Address 36: Seat Mem. Drvr        Labels: 8E0-959-760.lbl
   Part No: 8E0 959 760
   Component: Sitzmemory R2 F     0305 
   Coding: 00002
   Shop #: WSC 00000 
   VCID: 71BFC7F9588AFE52709-4B3C

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv.        Labels:. 8E0-959-433-MAX.clb
   Part No: 8E0 959 433 CG
   Component: Komfortger t T7B    4035 
   Coding: 11788
   Shop #: WSC 06335 
   VCID: 78A9FADD3BC0AF1AB77-4AA4

   Subsystem 1 - Part No: 8E1959801G
   Component: T rsteuer.FS BRM 0706 

   Subsystem 2 - Part No: 8E1959802G
   Component: T rsteuer.BF BRM 0706 

   Subsystem 3 - Part No: 8E0959801E
   Component: T rsteuer.HL BRM 0606 

   Subsystem 4 - Part No: 8E0959802E
   Component: T rsteuer.HR BRM 0606 

No fault code found.

-------------------------------------------------------------------------------
Address 55: Headlight Range        Labels: 4F0-910-357.lbl
   Part No SW: 4F0 910 357 F    HW: 4F0 907 357 F
   Component: AFS 1           H01 0020 
   Revision: 00000001    Serial number:               
   Coding: 0000019
   Shop #: WSC 06325 000 00000
   VCID: 290FEF99B5FAC692F89-807C

   Subsystem 1 - Part No: 8E0 941 329 A
   Component: AFS-Modul links H05 0030

   Subsystem 2 - Part No: 8E0 941 329 A
   Component: AFS-Modul rechtsH03 0010

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio        Labels: 8J0-035-1xx-56.clb
   Part No SW: 8E0 035 195 AC    HW: 8E0 035 195 AC
   Component: R Symphony2+    H03 0070 
   Revision: 00H03000    Serial number: AUZ1Z4F2837782
   Coding: 0650102
   Shop #: WSC 06325 000 00000
   VCID: 6889AA9D6E503F9A277-5160

No fault code found.

-------------------------------------------------------------------------------
Address 77: Telephone        Labels: 8P0-862-335.lbl
   Part No SW: 8P0 862 335 J    HW: 8P0 862 335 J
   Component: FSE_255x BT     H26 0290 
   Revision: 00000000    Serial number: 00000005010357
   Coding: 0001677
   Shop #: WSC 06325 000 00000
   VCID: 3D272BC951624A32A41-50D0

No fault code found.

End----------(Elapsed Time: 04:46, VBatt start/end: 12.3V/12.3V)-----------
------------------------------2 Faults Found-------------------------------
 
   #2  

Jef

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/3 of the LDP (V144) should be getting power from fuse S282. Could that wire be damaged so the V144 isn't getting powered like it should? Load test? Wiggle test?


Ohm test the LDP (V144) itself:
  • /1 + /3 = 640 to 720 Ω
  • /2 + /3 = 15 to 17 Ω
And are you getting good vacuum to the LDP (V144)? How many inHg at idle?
 
   #3  

ahidley

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I should have also mentioned that I did the resistance test using the 3 pins on the LDP as you stated and recieved results within the specs. I did this on both pumps and both passed. I also had power and ground on that connector going to the LDP.

I also should ha e mentioned this: every time the check engine light comes on with that code, it happens the instant that the engine starts. I never get a light while driving. It also only ever happens when the car sits overnight as is cold started.
Now I don't know the criteria required to trigger a check engine light. Aka x amount of fails vs y amount of passes = trigger.

I will check vacuum at the pump during idle this weekend. Good point!
 
   #4  

ahidley

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306mBar
vacuume.jpg
 

ahidley

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https://photos.app.goo.gl/4uL1FgX26YCr5iMW8

This is the vacuume check valve that is located righr at the top of the vacuume pump. This check vslve was bad and caused all my issues with check engine lights.
Problem solved.

P.s. The pliers in the photo are used to remove fuel and vacuume lines without breaking the plastic barbed ends. So far they have worked flawlessly.
 

EuroX

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Check pump circuit resistance and pump.
 
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