1.8T ( 20 V. ) Fault codes but no MIL light... ?

   #1  

2stroke

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:) Hi !
During the last two weeks, the family has been on a car holiday in Europe.
We have driven about 8000 Km and before departure I checked error codes, but there were none.
Now I checked error codes again and now there are these:
Can someone explain in understandable terms what the problem is ? :confused:
No MIL.

Car: Audi A4 1.8T Avant Quattro ( "B6/B7" )
Engine code: BFB

 
   #2  

Boki Ar

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All fault codes are intermittent. Haven't influence on drive-ability. You can clear faults, if You wish. :cool:
 
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Uwe

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No MIL because problems are "Intermittent". This means the problem was detected during one at least one drive cycle, but not the current one.

How many miles are on this car?

See:
http://wiki.ross-tech.com/wiki/index.php/16683/P0299/000665

And maybe you have the front lambda sensor going bad.

-Uwe-
 
   #4  

Jack@European_Parts

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OP In addition to the fine gentlemen's aforementioned comments......... :p


Yeah I'm thinking weak WG spring on that turbo is pretty common on this too, no?

Ditto on the OXS sensor too, is indeed a dog pile in the yard on the heaters for some type of sporadic connectivity, no?

I would check FP output volume and FPR because it was indeed a problem on these cars too, no?

You may find use of this thread.......

https://forums.ross-tech.com/showth...he-TSI-engines-great-video-by-Humble-Mechanic
 
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2stroke

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No MIL because problems are "Intermittent".
This means the problem was detected during one at least one drive cycle, but not the current one.

Maybe you have the front lambda sensor going bad.

How many miles are on this car ?
~207000 Km ---> ~128600 Miles.
 
   #6  

2stroke

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Yeah I'm thinking weak WG spring on that turbo is pretty common on this too, no ?

Ditto on the OXS sensor too, is indeed a dog pile in the yard on the heaters for some type of sporadic connectivity, no ?

I would check FP output volume and FPR because it was indeed a problem on these cars too, no ?
I have no idea if the "BFB" engine usually have weak WG spring.

The FPR is built into the fuel filter.
( Fuel filter is just ½ year old. )

Since we travelled across Germany I had the opportunity to run flat out for long periods.
In Germany I filled her up with the best possible fuel that money can buy over here in Europe 102 RON Octane
...but I think the car has very poor top speed: 205 Km/h ---> 127,4 mph
Tire: 235/40 x 18"

This is my Turbo:
 
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   #10  

2stroke

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1.8T ( 20 Valve )

The video doesn't address the heart of the matter & which is a stupid design flaw!

Turbo chargers changed due to P0299 code.......... is lack of experience in correcting an issue, verse just changing it with the same shit part!

My favorite fail in the repair industry!

If you run into a turbo charger that exhibits this stupid condition, do the following in the car first!
Do not change the turbo charger further being a moron wasting money!

Cut the waste-gate rod close to the actuator air motor, than leaving about 13MM of rod.
Remove air motor and bench....

Now the rod swings down limp and can be threaded with a socket die in the car carefully.
Now thread the other side on bench.

Now that you have threaded both, cut the rod in the car about 10 MM with a straight air saw or manually & with a nut already on the threads to guide you and used as a reverse chase to clean the threads.

Now install a nut on the air motor and in the car with actuator air motor unsecured still & install a coupling nut and tighten it, further shorting the distance by 2 MM approximately or until spring pull tension is achieved to seal the WG valve.

Now tighten the jam nuts against the coupling nut.

Takes about 15 minutes for a pro and about an hour for a guy that never did it.
Parts add up to the hardware store or Wurth supplier + tools you should already have in your box or will soon add.

The whole issue is really just a weak spring due to being in a high heat transition location for induced wear!

If you don't do this with a new turbo charger & while it's still on the bench, you have my permission to consider yourself an idiot!

I should add that the same can be achieved by slotting the mounting holes of the WG actuator air motor and pulling it back to make a tighter basic setting position. ( Works like 90% of the time )

Now a cheap ass fix at a total of "30 seconds" is to add an external spring, from lever at charger; to a bracket of your choice & to stiffen the hold of the WG valve that is currently weak!

Just look at any old 1.8T had a threaded setting on the WG air motor .......just add one!

// Jack.
Jack
What about a 1.8T ( 20 Valve ) engine with P0299 code ?
As you know the wastegate actuator on the 1.8T is mechanically controlled/activated.
Please explain in understandable terms how to solve this.

Jack,

It is a little difficult to understand what you are saying.
Once you get the P0299, the error can be "Fixed" by doing what you recommend ?
There is a LOT of play in my wastegate.
How will shortening the rod get rid of this play ?
Doesn't it have to do with a worn bushing ?
Forgive my ignorance.
Since English is not my spoken language I also have a difficulty to understand what Jack say :cry:

You can do a few quick things, add a new external WG spring, literally a spring by drilling two small holes or a coupling as aforementioned,
but if air motor is indeed still good only, most of time it is just weak or rod too long.
The tension of the spring is the real problem not the bushing.
Unless you feel or see an exhaust leak trace ?
How to check the wastegate actuator on a 1.8T ( 20 Valve ) engine ?

Jack, could you be as so kind to put together a photo Step-By-Step guide ?
:thumbs: I also hope that Jack will do this ! :)

Maybe I will take some pictures of what can be done.
:thumbs: I hope you do.
Since English is not my spoken language I have some difficulties to understand :cry:

Well if exhaust isn't leaking out of it and I have not seen one yet that couldn't be fixed unless the turbo was just plain bad from oil seals/impeller.
My opinion from statistics I have seen and reports back that I saved people a ton of money & they didn't have in letters emails and treats that I love, but certainly don't need showing here :rolleyes:.

I am right and the play is fine in bushing & as long as the hole seals and the spring is to correct hold tension.
No, I have no exhaust gas leak.
 
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   #11  

Jack@European_Parts

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Isn't vacuum used & switched by diverter valve to permit secondary safety boost pulses & not the WG control?

Vacuum is not used to control the WG in a 1.8T, isn't it boost always diverted to WG spring motor and blocked by N75 to permit WG closed by spring tension and boost increased by this method of N75 recirculating boost to turbo at T connection?

Isn't the spring strength of WG air motor also equally Important to hold exhaust to turbine up be spun and permit boost build up?

Don't you think you should read SSP & RTFB for explained operations of design & function?
 
   #12  

2stroke

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1. Isn't vacuum used & switched by diverter valve to permit secondary safety boost pulses & not the WG control ?

2. Vacuum is not used to control the WG in a 1.8T,
isn't it boost always diverted to WG spring motor and blocked by N75 to permit WG closed by spring tension and boost increased by this method of N75 recirculating boost to turbo at T connection ?

3. Isn't the spring strength of WG air motor also equally Important to hold exhaust to turbine up be spun and permit boost build up ?

4. Don't you think you should read SSP & RTFB for explained operations of design & function ?
1. & 2. Of course it is not vacuum from the intake that controlls the wastegate actuator. ( My bad :facepalm: )

3. I have no knowledge of this.

4. I am a beginner/rookie to this so I have no reason not to want to learn more and be taught about the 1.8T engine.
 
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2stroke

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   #16  

2stroke

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I suggest you post a complete auto-scan, it's mysteriously missing.
Code:
 Saturday , 24 , August , 2019 , 12:31:53
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 7 
VCDS Version: 19.6.1.0 (x64)
Data version: 20190529 DS308.0
www.Ross-Tech.com


VIN:       License Plate: 
Mileage: 207550 Km - 128965 miles   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:      Mileage: 207550 Km - 128965 miles
-------------------------------------------------------------------------------
Address 01: Engine        Labels: 06B-906-018-AVJ.lbl
   Part No SW: 8E0 909 518 AQ    HW: 8E0 909 018 B
   Component: 1.8L R4/5VT     G   0020  
   Coding: 0011711
   Shop #: WSC 00000 000 08192
   VCID: 7F353E7C2DBBB1B7E0-FFFE

3 Faults Found:
16683 - Boost Pressure Regulation 
            P0299 - 002 - Control Range Not Reached - Intermittent
17511 - Oxygen (Lambda) Sensor Heating; B1 S1 
            P1103 - 008 - Performance too Low - Intermittent
16523 - Oxygen (Lambda) Sensor B1 S2 
            P0139 - 004 - Response too Slow - Intermittent
Readiness: 0000 1100

-------------------------------------------------------------------------------
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  
   Coding: 0004871
   Shop #: WSC 06335 000 00000
   VCID: 2E6B3338B951883F3B-807A

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC        Labels: 8E0-820-043.lbl
   Part No: 8E0 820 043 BM
   Component:   A4 Klimaautomat   3233  
   Coding: 00000
   Shop #: WSC 00000  
   VCID: 6DE9F43427D7332742-FFFE

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect.        Labels: 8E0-907-279-8EC.lbl
   Part No: 8E0 907 279 N
   Component: int. Lastmodul  ECE 0907  
   Coding: 11041
   Shop #: WSC 65536  
   VCID: 3D490474373763A7B2-FFFE

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 8E0-959-655-94.lbl
   Part No SW: 8E0 959 655 G    HW: 8E0 959 655 G
   Component:    Airbag 9.41  H14 4230  
   Revision: 91H14423    Serial number: 0036M00CNEGA  
   Coding: 0031612
   Shop #: WSC 06335 000 00000
   VCID: 3B4D0A6C7A236D978C-806E

   Subsystem 1 - Serial number: 6332DRB406699399Y

   Subsystem 2 - Serial number: 6342DRB4069B131CR

   Subsystem 3 - Serial number: 6352ARB403388589Q

   Subsystem 4 - Serial number: 6362ARB403383BE1Q

   Subsystem 5 - Serial number: 63729RB4030A5692I

   Subsystem 6 - Serial number: 63829RB4030A56A4M

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel        Labels: 8E0-953-549.lbl
   Part No: 8E0 953 549 Q
   Component: Lenksáulenmodul     0801  
   Coding: 02042
   Shop #: WSC 06335  
   VCID: 41B178844BCF0747D6-FFFE

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 8E0-920-9xx-8EC.lbl
   Part No SW: 8E0 920 931 S    HW: 8E0 920 931 S
   Component: KOMBI+WFS 3     H10 0200  
   Revision: 0200        Serial number: AUX6Z0G0059191
   Coding: 0007118
   Shop #: WSC 73249 020 01196
   VCID: 384715604815468F61-FFFE

No fault code found.

-------------------------------------------------------------------------------
Address 25: Immobilizer        Labels: 8E0-920-9xx-8EC.lbl
   Part No SW: 8E0 920 931 S    HW: 8E0 920 931 S
   Component: KOMBI+WFS 3     H10 0200  
   Revision: 0200        Serial number: AUX6Z0G0059191
   Coding: 0007118
   Shop #: WSC 73249 020 01196
   VCID: 384715604815468F61-FFFE

No fault code found.

-------------------------------------------------------------------------------
Address 45: Inter. Monitor        Labels: 8E0-951-177.lbl
   Part No: 8E0 951 177 
   Component: Innenraumueberw.   0804  
   Coding: 00001
   Shop #: WSC 00000  
   VCID: 6BEDFA2C19C33D175C-FFFE

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv.        Labels:. 8E0-959-433-MAX.clb
   Part No: 8E0 959 433 CR
   Component: Komfortgerát TBF    4336  
   Coding: 07018
   Shop #: WSC 06335  
   VCID: 033DB28C1153D55784-FFFE

   Subsystem 1 - Part No: 8E1959801H
   Component: Tõrsteuer.FS BRM 0606  

   Subsystem 2 - Part No: 8E1959802H
   Component: Tõrsteuer.BF BRM 0606  

No fault code found.

-------------------------------------------------------------------------------
Address 55: Headlight Range        Labels: 8P0-907-357.lbl
   Part No: 8P0 907 357 H
   Component: Dynamische LWR  H01 0010  
   Revision: 00000001    Serial number:               
   Coding: 0000005
   Shop #: WSC 06335 000 00000
   VCID: 3FB57E7C6E3B71B7A0-806A

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio        Labels: 8J0-035-1xx-56.clb
   Part No SW: 8E0 035 186 AL    HW: 8E0 035 186 AL
   Component: R Concert2+     H01 0270  
   Revision: 00H01000    Serial number: AUZ1Z3G8322819
   Coding: 0230021
   Shop #: WSC 06335 000 00000
   VCID: 71D1E8446BEFD7C766-FFFE

No fault code found.

End-------------------------(Elapsed Time: 08:25)--------------------------
 
   #17  

2stroke

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Time to pick up the repair manual and actually read it.
This was not the answer I was hoping for.

I would like help setting up/adjust the wastegate actuator on my 1.8T engine.
 
   #19  

PetrolDave

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This was not the answer I was hoping for.

I would like help setting up/adjust the wastegate actuator on my 1.8T engine.
It might be easier if you only posted questions on this subject in the thread you have started, posting in multiple threads ALWAYS causes confusion :thumbs:

Can you confirm whether the engine ECU has been "chip tuned" as Jack suspects - see your original thread?
 
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