Golf IV, 1.6i engine BCB P1553 and P1504

Orchid70 · Jun 19, 2022

Hi
Car (for us known since several years) came in with no start, changed the pump and battery due to it beeing time for it.
Engine running again and noticed it run high at idle. Steady at 1200 rpm.
Was looking around in VCDS when suddenly the engine got the hickups, engine run unevenly and EPC light and MIL was lit.

P1553 Barometric / Manifold Pressure Signals - Implausible Correlation - Intermittent
P1504 Intake Air System - Leak detected

I checked the vacuum pipe from the brake booster - my earlier reinforcement still in place and working.
Checked with brake cleaner engine running and hot - nothing.
After that checked with smoke machine, hot engine - only place smoke comming out was the breather on EGR.

Two Auto Scans below. After the first one, I erased all codes. And when the engine whent into limb (sometimes the throttle answers, sometimes it doesnt) I read the codes again.
It would seem that P1553 comes first and not always with P1504.
When I put any load on the engine - it starts to run unevenly.

I would be very thankfull for any ideas to where to go. Should not the fault code be pointing at the MAP sensor itself, rather than to the signals, if the MAP sensor was foulty?

Code:

Sunday,19,June,2022,20:32:03:18201
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 7 x64
VCDS Version: 21.9.0.2 (x64)  HEX-V2 CB: 0.4555.4
Data version: 20210903 DS330.0
www.Ross-Tech.com

Dealer/Shop Name: Firma Johannes Bruun 
Workshop Code: 000 02013 000000

VIN: WVWZZZ1JZ3W270756   License Plate: SAD744
Mileage: 308776km-191860mi   Repair Order: 



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


Chassis Type: 1J (1J - VW Golf/Bora IV (1998 > 2006))
Scan: 01 02 03 08 15 16 17 19 22 29 35 36 37 39 46 47 55 56 57 75
          76
 
VIN: WVWZZZ1JZ3W270756   Mileage: 308770km-191860miles
-------------------------------------------------------------------------------
Address 01: Engine        Labels: 036-906-034-AZD.clb
   Part No: 036 906 034 DR
   Component:  MARELLI 4MV G      5957  
   Coding: 00031
   Shop #: WSC 40150  
   VCID: 6597B3CE2C75B7B3347-4B5C
   WVWZZZ1JZ3W270756     VWZ6Z0B0301606

1 Fault Found:
17961 - Barometric / Manifold Pressure Signals 
            P1553 - 35-10 - Implausible Correlation - Intermittent
Readiness: 1010 0101

-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 1C0-907-37x-ABS.lbl
   Part No: 1C0 907 379 L
   Component: ABS FRONT MK60      0101  
   Coding: 0001025
   Shop #: WSC 01266 785 00200
   VCID: 33331D96D72119036A3-51A8

3 Faults Found:
01314 - Engine Control Module 
            004 - No Signal/Communication - Intermittent
00668 - Supply Voltage Terminal 30 
            008 - Implausible Signal - Intermittent
01314 - Engine Control Module 
            013 - Check DTC Memory - Intermittent

-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 6Q0-909-605-VW5.lbl
   Part No: 1C0 909 605 A
   Component: 27 AIRBAG VW51 01   0006  
   Coding: 12855
   Shop #: WSC 01266  
   VCID: 221DE8D27DDB808B915-5184

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

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 1J0-920-xx5-17.lbl
   Part No: 1J0 920 806 B
   Component: KOMBI+WEGFAHRS. RB8 V24  
   Coding: 05113
   Shop #: WSC 00000  
   VCID: 2615F4C211F37CABFDD-5184
   WVWZZZ1JZ3W270756     VWZ6Z0B0301606

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway        Labels: 6N0-909-901-19.clb
   Part No: 6N0 909 901 
   Component: Gateway K<->CAN    0001  
   Coding: 00006
   Shop #: WSC 01266  
   VCID: 70B9D29AE3B7621B571-5184

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv.        Labels: 1C0-959-799.lbl
   Part No: 1C0 959 799 
   Component: 1F Komfortgerát HLO 0001  
   Coding: 00259
   Shop #: WSC 01266  
   VCID: 74B1DE8A97AF5E3BB39-4B3C

   Subsystem 1 - Part No: 1C1959801A
   Component: 1F Tõrsteuer.FS KLO 0004  

   Subsystem 2 - Part No: 1C1959802A
   Component: 1F Tõrsteuer.BF KLO 0004  

   Subsystem 3 - Part No: 1C0959811A
   Component: 1F Tõrsteuer.HL KLO 0004  

   Subsystem 4 - Part No: 1C0959812A
   Component: 1F Tõrsteuer.HR KLO 0004  

8 Faults Found:
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
00928 - Locking Module for Central Locking; Front Driver Side (F220) 
            27-00 - Implausible Signal
01332 - Door Control Module; Passenger Side (J387) 
            53-10 - Supply Voltage Too Low - Intermittent
01359 - Internal Central Locking Switch; Passenger Side (E198) 
            27-10 - Implausible Signal - Intermittent
00929 - Locking Module for Central Locking; Front Passenger Side (F221) 
            27-10 - Implausible Signal - Intermittent
01333 - Door Control Module; Rear Left (J388) 
            53-10 - Supply Voltage Too Low - Intermittent
01334 - Door Control Module; Rear Right (J389) 
            53-10 - Supply Voltage Too Low - Intermittent

End----------(Elapsed Time: 05:05, VBatt start/end: 14.3V/14.0V)-----------

Second auto scan:

Code:

Sunday,19,June,2022,20:41:23:18201
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 7 x64
VCDS Version: 21.9.0.2 (x64)  HEX-V2 CB: 0.4555.4
Data version: 20210903 DS330.0
www.Ross-Tech.com

Dealer/Shop Name: Firma Johannes Bruun 
Workshop Code: 000 02013 000000

VIN: WVWZZZ1JZ3W270756   License Plate: SAD744SECOND
Mileage: 308776km-191860mi   Repair Order: 


Chassis Type: 1J (1J - VW Golf/Bora IV (1998 > 2006))
Scan: 01 02 03 08 15 16 17 19 22 29 35 36 37 39 46 47 55 56 57 75
          76
 
VIN: WVWZZZ1JZ3W270756   Mileage: 308770km-191860miles
-------------------------------------------------------------------------------
Address 01: Engine        Labels: 036-906-034-AZD.clb
   Part No: 036 906 034 DR
   Component:  MARELLI 4MV G      5957  
   Coding: 00031
   Shop #: WSC 40150  
   VCID: 6597B3CE2C75B7B3347-4B5C
   WVWZZZ1JZ3W270756     VWZ6Z0B0301606

2 Faults Found:
17961 - Barometric / Manifold Pressure Signals 
            P1553 - 35-10 - Implausible Correlation - Intermittent
17912 - Intake Air System 
            P1504 - 35-00 - Leak Detected
Readiness: 1010 0001

-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 1C0-907-37x-ABS.lbl
   Part No: 1C0 907 379 L
   Component: ABS FRONT MK60      0101  
   Coding: 0001025
   Shop #: WSC 01266 785 00200
   VCID: 33331D96D72119036A3-51A8

1 Fault Found:
01314 - Engine Control Module 
            013 - Check DTC Memory

-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 6Q0-909-605-VW5.lbl
   Part No: 1C0 909 605 A
   Component: 27 AIRBAG VW51 01   0006  
   Coding: 12855
   Shop #: WSC 01266  
   VCID: 221DE8D27DDB808B915-5184

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 1J0-920-xx5-17.lbl
   Part No: 1J0 920 806 B
   Component: KOMBI+WEGFAHRS. RB8 V24  
   Coding: 05113
   Shop #: WSC 00000  
   VCID: 2615F4C211F37CABFDD-5184
   WVWZZZ1JZ3W270756     VWZ6Z0B0301606

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway        Labels: 6N0-909-901-19.clb
   Part No: 6N0 909 901 
   Component: Gateway K<->CAN    0001  
   Coding: 00006
   Shop #: WSC 01266  
   VCID: 70B9D29AE3B7621B571-5184

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv.        Labels: 1C0-959-799.lbl
   Part No: 1C0 959 799 
   Component: 1F Komfortgerát HLO 0001  
   Coding: 00259
   Shop #: WSC 01266  
   VCID: 74B1DE8A97AF5E3BB39-4B3C

   Subsystem 1 - Part No: 1C1959801A
   Component: 1F Tõrsteuer.FS KLO 0004  

   Subsystem 2 - Part No: 1C1959802A
   Component: 1F Tõrsteuer.BF KLO 0004  

   Subsystem 3 - Part No: 1C0959811A
   Component: 1F Tõrsteuer.HL KLO 0004  

   Subsystem 4 - Part No: 1C0959812A
   Component: 1F Tõrsteuer.HR KLO 0004  

No fault code found.

End----------(Elapsed Time: 05:00, VBatt start/end: 14.0V/13.8V)-----------

Uwe · Jun 19, 2022

Orchid70 said:
Should not the fault code be pointing at the MAP sensor itself, rather than to the signals, if the MAP sensor was foulty?

It depends in what way the sensor is faulty. For example MAF sensors from the early 2000s often failed in a way that they under-reported air flow. This would manifest in fuel trims that went out-of-spec, but the reported airflow was never so far away from reality that the ECU would decide that the MAF sensor itself was faulty.

On this ECU, intake manifold pressure can be seen in MVB 002.4 or 003.2 as well as several others. However, I'm not finding anywhere that barometric (ambient atmospheric) pressure is reported. Still, I would take a look at what is happening with manifold pressure to see whether the values are realistic.

-Uwe-

JMR · Jun 20, 2022

Have you rechecked and try to twist around the hose from brake booster to the gallery ?

Orchid70 · Jun 26, 2022

So, in between the sweat attacs in the tripical heat - I have tried:
To twist the pipe connection to the brake booster. Nothing.
I have checked the atmospheric pressure at key on engine off: 999,6-1001 mbar (fluctuates a bit)
At idle around ~450 mbar
Rev the ingine <450 mbar, for ex at 2600 rpm its 250 mbar.
I cannot see anything happening.

A question. Does some one know how much is there supposed to be getting air in through the filter at the EGR valve? Part number 037133843A
Could that be letting in too much air?
That was the only part where smoke was getting (pouring) out.

Orchid70 · Jul 14, 2022

Found the culprit.
Cylinder 2 valve guides or oil rings sticking.
I dont know why I didnt react when I did yet an other smoke test (indoors this time). Smoke was coming out of the one way valve on the oil filler neck. Just pinched it and didnt react. Idiot!
But when I did a cylinder leak down test it was obvious.

This car is not worth putting any money on. Its time for timing and aux belts with all all the tensioners. So its going to be scrapped.

JMR · Jul 15, 2022

RIP !

Crasher · Jul 15, 2022

Before you scrap it, remove and clean the throttle body and then reset it in Basic settings 060 after clearing the adaptations.

Orchid70 · Jul 15, 2022

Done that, Crasher. Also cleaned EGR and checked everything. Changed the MAP sensor. And checked the timing. Both tensioners were way out of specs. But the timing was correct. At least its now. I found this in my search:

After I have had compressed air in the engine (I didnt go all the way up with the air, didnt need. The air was heard clearly coming out from the oil filler when I tested leak down test on cyl 2: on cold engine!) - after that the engine run even worse.
Ill be taking throttle body as reservpart. As well everything else from the engine!
The owner has bought same engine Skoda Octavia from 2004. =) He just might have put a thought it that prughage.

Crasher · Jul 15, 2022

At least he didn't buy a 1.4 TFSI with the CAVD engine :facepalm:

Orchid70 · Jul 15, 2022

1,4 Fsi Tfsi are shit!
It was by the way 8V he have bought. But Im still taking every part I can, from the Golf.
He was totally fooled by the company that sold it to him. The entire car was spray buttle painted, without clear coat. The pumber already loosing its paint.... He didnt see anything.
That is the reason we sometimes follow with our customes when they are buying a "new" car.

Golf IV, 1.6i engine BCB P1553 and P1504

Orchid70

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Uwe

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JMR

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Orchid70

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Orchid70

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JMR

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Crasher

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Orchid70

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