2010 r36 cannot read engine module with VCDS

[shaunbags]

Hi Guys,

i dont have any trouble using VCDS on my touareg but ive plugged it into my 2010 r36 and i dont get anything from the engine....

i can connect to other bit like the trans but no engine love, been searching here there and everywhere for a while and getting frustrated now haha

i dont have much experience with it and have only used it a few time for basic stuff, probably something simple.

trying to investigate:P2198 O2 Sensor Signal Stuck Rich Bank 2 Sensor
P2098 Post Catalyst Fuel Trim System Too Lean Bank 2

[kamold]

Do you just get 'could not be reached' if you do an autoscan with the car on accessories?

[shaunbags]

ill have another go today (and document it better :P )

[shaunbags]

OK, getting no response from controller, swapped to all the different usb ports on my laptop.
Cable is a generic usb-serial unit. Although it works fine on my older touareg.
Can communicate with the trans and some others

[kamold]

When you say it's a generic serial to USB cable what exactly do you mean?
Is it not a genuine vcds cable?
So you have access to any other diagnostics software like obd11 or Autel or anything?

[shaunbags]

Hey mate, yes I do mean it's not a genuine cable.
The only other tool I've got is viecar & torque phone app.

[shaunbags]

I just ordered the obd11 + pro.

Looks good.

[Transporter]

OK, getting no response from controller, swapped to all the different usb ports on my laptop.
Cable is a generic usb-serial unit. Although it works fine on my older touareg.
Can communicate with the trans and some others

Let us know if the OBD11 +Pro works on engine control module. The chances are that it won’t, since you can connect to other modules in your car.

“Can communicate with some others” do you mean in your R36 or Touareg?

[shaunbags]

Just ran a full module scan and I can only communicate with the trans on Vcds.
Can ready a fair bit on torque, car is idling up and down from 1100-2000rpm by itself.

The original codes posted have gone after I've gone over the engine.

Not showing any codes while it's idle hunting.

Looked for air leaks and cannot find any, have just got the intake back on so I'm confident it's all plumbed up good.

Gave the MAF a good clean while it was out too.

Timing advance is reading +18 degrees?

Mismatch on O2 sensors 0.3v /0.4v

[kamold]

Could be pcv valve membrane is ruptured.

[shaunbags]

i just did a quick googletube of the PCV on this powerplant.

i suppose i could unplug the hose where it goes into the oil separator chamber and plug it to see what happens

[shaunbags]

ok, its cold in the shed haha.

pulled the PCV hose and plugged it, i though we where onto something as it went into a pretty steady idle but the idle hunting eventually came back same as before, very even and consistent with its duration.

i did note that the measured AFR was leaning out at the top of the revving, like up to 30:1 then back....

ill figure out how to do graphing, try compare o2 sensor voltage to AFR and a couple other fields.

ill update in a week when i get another chance to have a play, out of action from tomorrow.

[shaunbags]

Bit of an update on this one, swapped some O2 sensors around with some second hand units and no change.
Started looking for air leaks thoroughly and didn't find anything, used my LPG torch around all upper manifold connection areas and inlets and couldn't get it to stumble.

Did some learning on long/short term fuel trims then went and observed the car, long terms where anywhere from 25 to 40 percent and the short terms where not fluctuating much which told me it wasn't an air leak.

At the moment I'm pretty sure this is pointing to a crappy MAF, the values seemed to be hanging while it was revving up and down while I was expecting them to fall off with the revs (and airflow)... It just didn't look right to me and what I was seeing physically.

Ive got a used unit on its way now to see if that does anything positive.

[kamold]

I've managed to introduce a vacuum leak in mine :facepalm:
Did timing chains and guides and now there is a definite sucking sound coming from the front corner of the cam cover somewhere above the vacuum pump.
Symptoms (hunting revs at idle) make it look like the PCV valve however I've taken the covers back off and inspected the PCV valve (which I had proactively replaced about 9 months ago) and it's fine.
Cleaned and checked the cam cover gasket no issues there.
Sprayed brake cleaner around the area without any result. Can't see a split hose or plastic anywhere.
Got me a bit stumped at the moment. Can really hear the sound but can't locate it yet.

[shaunbags]

I've managed to introduce a vacuum leak in mine :facepalm:
Did timing chains and guides and now there is a definite sucking sound coming from the front corner of the cam cover somewhere above the vacuum pump.
Symptoms (hunting revs at idle) make it look like the PCV valve however I've taken the covers back off and inspected the PCV valve (which I had proactively replaced about 9 months ago) and it's fine.
Cleaned and checked the cam cover gasket no issues there.
Sprayed brake cleaner around the area without any result. Can't see a split hose or plastic anywhere.
Got me a bit stumped at the moment. Can really hear the sound but can't locate it yet.

Oh no! that is not ideal.
i dont suppose you can smoke test it? i wish they where a bit cheaper to purchase (for what they actually do...)

[kamold]

Yeah I don't have one but I'll have to try and get access to one. Would make it a bit easier to isolate.

[shaunbags]

ill put this on my list of things to re-invent and sell to the masses....$100 smoke machine.

[kamold]

Then you could blow smoke up....into engine bays to find leaks... ;)

[kamold]

After making myself a bit sick and with head spins after trying the cigar smoke blowing method to find the leak, I took the intake back off and had a good look at everything. Pulled off and inspected the vacuum pump, cleaned all mating surfaces and put everything back together.
Found that the single M10 bolt at the back of the intake was cross threaded so it was causing the whole alignment to slightly skewed. Cleaned up the thread and hole and now no more leak! Thankfully was something simple/stupid.

[shaunbags]

great success! i did consider getting a vaping friend over to try blow some clouds :3gears:
ill pull the intake for a detailed look if this other MAF doesnt do anything.

i am wondering if by me just deciding to clean the MAF i actually created a problem......looking at the cross sectional design of the gen 6 MAF there is potential to wash crud deep into it and there isnt a clear shot to get it out, the actual sensor unit is pretty well bonded to the housing too, i have it a bit of a tweak and it didnt budge.

there is good info in the vr6 self study guide: http://sandbox.enjoybeing.net/veedub/vw_vr6_self_study.pdf

[shaunbags]

Bit of an update.
Received my OBDeleven.
Getting 2 engine faults recurring.

P119A fuel pressure sensor malfunction.
"upper limit exceeded"



P1647 check coding/versions of control modules in drive train
"implausible signal"

I clear this and the engine stops rev hunting

The second code is pretty much constant, the first comes and goes a bit

Thoughts?
Fuel rail pressure 40 bar at idle
Fuel pump at idle 4.8 bar

Fuel rail pressure 4000rpm in park 67bar

[kamold]

First fault is probably the sensor itself. I'd first try just unplugging it, check/clean contacts and reseat. If the fault returns replace the sensor:
P119A/004506 - Ross-Tech Wiki (http://wiki.ross-tech.com/wiki/index.php/P119A/004506)

Second fault indicates there is another control module on powertrain canbus that is not correctly coded.
Do you have a fault in your ABS module?

[shaunbags]

ill have a play with the sensor.

im pulling the clockspring assebly out for a look today.

here is the rest of the log

Fault
Control unit: 01 Engine
Active faults: 0
Inactive faults: 1
System description: CC3.6-FSI-EU5 G
Software number: 03H906032FS
Software version: 4855
Hardware number: 03H906032AB
Serial number: VWZCZ000000000
Faults:
P1647 - Checking coding/versions of control modules in drivetrain Implausible signal
Active




Mileage: 210310 km
Date: 2019-09-13 07:29


---------------------------------------------------------------
Fault
Control unit: 02 Transmission
Active faults: 0
Inactive faults: 1
System description: GSG DSG AG6 511
Software number: 02E300012L
Software version: 2103
Hardware number: 02E927770AL
Hardware version: F11
Serial number: 00001005240165
Faults:
U0235 - Lost Communication With Cruise Control Front Distance Range Sensor
Active




Mileage: 210310 km
Date: 2019-09-13 07:29


---------------------------------------------------------------
Fault
Control unit: 03 Brakes
Active faults: 0
Inactive faults: 1
System description: J104 C4 440 V2
Software number: 3C0614109AF
Software version: 0015
Hardware number: 3C0614109AF
Hardware version: K03
Serial number: 00000705892119
Faults:
00778 - Steering angle sensor no or incorrect basic setting/adaptation
Active




Mileage: 210310 km
Date: 2019-09-13 07:29


---------------------------------------------------------------
Fault
Control unit: 08 Air Conditioning
Active faults: 0
Inactive faults: 0
System description: Climatronic
Software number: 5K0907044BT
Software version: 0709
Hardware number: 5K0907044BT
Hardware version: H15
ODX name: EV_Climatronic
ODX version: A01006
Faults:
No trouble codes found


Mileage: 210310 km
Date: 2019-09-13 07:30


---------------------------------------------------------------
Fault
Control unit: 09 Central Electrics
Active faults: 0
Inactive faults: 0
System description: Bordnetz-SG H54
Software number: 3C8937049E
Software version: 2602
Hardware number: 3C8937049E
Hardware version: 063
Serial number: 00000003986828
Faults:
No trouble codes found


Mileage: 210310 km
Date: 2019-09-13 07:30


---------------------------------------------------------------
Fault
Control unit: 10 Parking Assistance 2
Active faults: 0
Inactive faults: 0
System description: PARKHILFE 8K
Software number: 3C8919475A
Software version: 0009
Hardware number: 3C8919475
Hardware version: H07
Serial number: 08791015951159
Faults:
No trouble codes found


Mileage: 210310 km
Date: 2019-09-13 07:30


---------------------------------------------------------------
Fault
Control unit: 15 Airbag
Active faults: 0
Inactive faults: 0
System description: J234__003 VW10 HI
Software number: 5N0959655M
Software version: 1916
Hardware number: 5N0959655M *
Hardware version: 003
Serial number: 003GGPBZ36YK
Faults:
No trouble codes found


Mileage: 210310 km
Date: 2019-09-13 07:30


---------------------------------------------------------------
Fault
Control unit: 16 Steering Column Electronics
Active faults: 0
Inactive faults: 4
System description: LENKS.MODUL
Software number: 5K0953569AS
Software version: 0180
Hardware number: 5K0953569AS
Hardware version: 016
Serial number: 20170503200509
ODX name: EV_VW360SteerWheelUDS
ODX version: A03004
Faults:
B114411 - Turn signal switch Short circuit to ground
Active
B114913 - Windshield wiper intermittent mode switch Open circuit
Active
U108E00 - Control unit in steering wheel No Communication
Active
B116854 - Steering angle sensor No basic setting
Active




Mileage: 210310 km
Date: 2019-09-13 07:30


---------------------------------------------------------------
Fault
Control unit: 17 Dash Board
Active faults: 0
Inactive faults: 0
System description: KOMBI
Software number: 3C0920872J
Software version: 0305
Hardware number: 3C0920872J
Hardware version: H03
Serial number: 00000000000000
ODX name: EV_Kombi_UDS_VDD_RM09
ODX version: A04052
Faults:
No trouble codes found


Mileage: 210310 km
Date: 2019-09-13 07:31


---------------------------------------------------------------
Fault
Control unit: 19 Gateway
Active faults: 0
Inactive faults: 0
System description: J533 Gateway H13
Software number: 3C0907530Q
Software version: 0172
Hardware number: 3C0907951
Serial number: 3620P1062404E7
Faults:
No trouble codes found


Mileage: 210310 km
Date: 2019-09-13 07:31


---------------------------------------------------------------
Fault
Control unit: 22 All Wheel Control
Active faults: 0
Inactive faults: 0
System description: Haldex 4Motion
Software number: 0BS907554B
Software version: 4015
Hardware number: 0BS907554B
Faults:
No trouble codes found


Mileage: 210310 km
Date: 2019-09-13 07:31


---------------------------------------------------------------
Fault
Control unit: 25 Immobilizer
Active faults: 0
Inactive faults: 0
System description: IMMO 052
Software number: 3C0959433AM
Software version: 0383
Hardware number: 3C0959433AM
Hardware version: 008
Serial number: VWZCZ000000000
Faults:
No trouble codes found


Mileage: 210310 km
Date: 2019-09-13 07:31


---------------------------------------------------------------
Fault
Control unit: 2E Media Player Position 3
Active faults: 0
Inactive faults: 0
System description: SG EXT.PLAYER
Software number: 5N0035342C
Software version: 0111
Hardware number: 5N0035342C
Hardware version: H13
Serial number: 7668204731
Faults:
No trouble codes found


Mileage: 210310 km
Date: 2019-09-13 07:31


---------------------------------------------------------------
Fault
Control unit: 36 Seat Adjustment Driver Side
Active faults: 0
Inactive faults: 0
System description: Sitzverstellung
Software number: 3C0959760E
Software version: 1101
Hardware number: 3C0959760E
Hardware version: 000
Serial number: 00000000000000
Faults:
No trouble codes found


Mileage: 210310 km
Date: 2019-09-13 07:31


---------------------------------------------------------------
Fault
Control unit: 42 Door Electronics Driver Side
Active faults: 0
Inactive faults: 0
System description: TUER-SG FT
Software number: 3C0959701A
Software version: 0306
Hardware number: 3C0959793A
Hardware version: 002
Serial number: 0000885207
ODX name: EV_DCU42BroseDriveSide
ODX version: A03004
Faults:
No trouble codes found


Mileage: 210310 km
Date: 2019-09-13 07:31


---------------------------------------------------------------
Fault
Control unit: 44 Steering Assistance
Active faults: 0
Inactive faults: 0
System description: EPS_ZFLS Kl. 143
Software number: 1K0909144J
Software version: 3001
Faults:
No trouble codes found


Mileage: 210310 km
Date: 2019-09-13 07:31

[shaunbags]

Fault
Control unit: 46 Central Module Comfort System
Active faults: 0
Inactive faults: 1
System description: KSG PQ46 RDK 052
Software number: 3C0959433AM
Software version: 0412
Hardware number: 3C0959433AM
Hardware version: 008
Serial number: VWZCZ000000000
Faults:
01134 - Alarm horn
Active




Mileage: 210310 km
Date: 2019-09-13 07:32


---------------------------------------------------------------
Fault
Control unit: 47 Sound System
Active faults: 0
Inactive faults: 0
Software number: 5K0035456
Software version: 0340
Hardware number: 5K0035456
Hardware version: H06
Faults:
No trouble codes found


Mileage: 210310 km
Date: 2019-09-13 07:32


---------------------------------------------------------------
Fault
Control unit: 52 Door Electronics Passenger Side
Active faults: 0
Inactive faults: 0
System description: TUER-SG BT
Software number: 3C0959702A
Software version: 0306
Hardware number: 3C0959792A
Hardware version: 002
Serial number: 0000863534
ODX name: EV_DCU52BrosePasseSide
ODX version: A03004
Faults:
No trouble codes found


Mileage: 210310 km
Date: 2019-09-13 07:32


---------------------------------------------------------------
Fault
Control unit: 53 Parking Brake
Active faults: 0
Inactive faults: 0
System description: J540 EPB3 VW-15417
Software number: 3C8907801E
Software version: 0007
Hardware number: 3C8907801E
Serial number: 00000000330261
Faults:
No trouble codes found


Mileage: 210310 km
Date: 2019-09-13 07:32


---------------------------------------------------------------
Fault
Control unit: 55 Headlight Regulation
Active faults: 0
Inactive faults: 0
System description: AFS-Steuergeraet
Software number: 5M0907357C
Software version: 0142
Hardware number: 5M0907357C
Faults:
No trouble codes found


Mileage: 210310 km
Date: 2019-09-13 07:32


---------------------------------------------------------------
Fault
Control unit: 56 Radio
Active faults: 0
Inactive faults: 0
System description: Radio RCD510
Software number: 5K0035190
Software version: 0167
Hardware number: 5K0035190
Hardware version: 040
Serial number: VWZ1Z3K3534089
Faults:
No trouble codes found


Mileage: 210310 km
Date: 2019-09-13 07:33


---------------------------------------------------------------
Fault
Control unit: 65 Tire Pressure Monitoring
Active faults: 0
Inactive faults: 0
System description: RDK
Software number: 3C0959433AM
Software version: 0453
Hardware number: 3C0959433AM
Hardware version: 008
Serial number: VWZCZ000000000
Faults:
No trouble codes found


Mileage: 210310 km
Date: 2019-09-13 07:33


---------------------------------------------------------------
Fault
Control unit: 69 Trailer Function
Active faults: 0
Inactive faults: 0
System description: Anhaenger
Software number: 1K0907383F
Software version: 0100
Hardware number: 1K0907383F
Hardware version: H07
Serial number: 00000131391164
Faults:
No trouble codes found


Mileage: 210310 km
Date: 2019-09-13 07:33

[kamold]

Ok yep that other ecu fault is because you need to run steering angle sensor calibration.

[shaunbags]

so ive got the clock spring assembly apart and everything looks ok, no visible damage except when im pinning out the ribbon there is 2 pins apart from the rest ive assumed are CAN but they are bridged.
generally that's not a good thing, the ribbon checks out, no breakages in itself.the only bit is the moulded plug where i cannot see whats happening.

yeah, dunno.

[shaunbags]

replacement bits en route:)

[shaunbags]

Update, replacement bits fitted and working, had an intermittent fuel pressure fault but it boiled down to poorly seated inlet manifold gasket, such a minor leak still caused faults.

Pays to double check, could have saved myself some time. Was bloody sure I got it right the first time but you get that.

[kamold]

It's amazing how small a leak can be and still cause an issue

[shaunbags]

Yeah for sure.... Quite a relief to get through all the issues!