No feedback in the Diagnostics section so thought I'd post to the wider audience

Started up the Roomy the other morning after the long and spirited drive down to London for the Grafitti Tunnel Meet and had an EML with 'Exhaust Workshop' popping up on the maxidot.

Ran a scan today and it threw the following codes (not included full scan as all else was clear)

Monday,26,November,2012,15:47:08:26358

VCDS Version: Release 11.11.4

Data version: 20120807

Chassis Type: 5J - Skoda Roomster

Scan: 01 02 03 08 09 15 16 17 19 25 37 44 46 55 56 76 77

VIN: TMBN************* Mileage: 105720km/65691miles

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

Address 01: Engine Labels: 038-906-019-AXR.lbl

Part No: 038 906 019 NR

Component: 1,9l R4 EDC 0000SG 9134

Coding: 00102

Shop #: WSC 73430

VCID: 74ECCCF344DDD9B835D

TMBNG65J285059216 SKZ7Z0H4700052

2 Faults Found:

19557 - Motor for Intake Manifold Flap (V157)

P3101 - 35-10 - Open or Short to Ground - Intermittent

19559 - Motor for Intake Manifold Flap (V157)

P3103 - 35-10 - Malfunction - Intermittent

Readiness: 1 2 0 0 0

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

Address 03: ABS Brakes Labels: 6R0-907-37x-ESP.lbl

Part No SW: 6Q0 907 379 AP HW: 6Q0 907 379 AP

Component: ESP 8.0 front H03 0001

Revision: 00000000 Serial number: 00000000000000

Coding: 0000284

Shop #: WSC 73430 790 00000

VCID: 8B1E370FE9232640C47

No fault code found.

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

Address 17: Instruments Labels: 5J0-920-xxx-17.clb

Part No: 5J0 920 940 C

Component: KOMBIINSTR. V2824486

Coding: 19402

Shop #: WSC 25063

VCID: 2A50128BD699DF485F1

1 Fault Found:

01336 - Data Bus for Comfort System

80-00 - Single-Wire Operation

Reading the threads HERE and HERE the prognosis looks costly :(

Anyone any thoughts??

TDIs don't have throttle bodies.

Phil

Yeah, not a throttle body as said. I don't know the roomy engine yet, but I do know some 1.9tdis have a variable intake system. Basically a flap in the manifold. On my A3 I used to have it was controlled by a vacuum motor, but that was controlled by a solenoid. So I'd suggest it's the wiring or that solenoid.

EDIT:

it seems on the roomy its an electric system. In the wiring diagrams its some electronics and a motor with a 5v supply, an earth and three other connections from the engine management unit. Sorry I can't be more specific as I can't go and look at mine (OK won't it's cold and dark).

Edited 28 November, 201213 yr by lowedb

It does have a throttle body (as Skoda describe it).

Technically a diesel doesn't have a flap connected to the pedal but it does have a butterfly in the air intake system that in this case is controlled by the ECU. This is used as both an anti shudder valve and EGR, as a diesel doesn't produce vacuum in the inlet manifold the flap is used to create a depression behind that draws the exhaust gas back into the system. Technically as Skoda see it and it's kinda lost in translation a bit a throttle is anything that limits flow, so it's a throttle body.

And tbh I've not had another issue other than the throttle body itself, pretty good bet that's the issue.

It does have a throttle body (as Skoda describe it).

Technically a diesel doesn't have a flap connected to the pedal but it does have a butterfly in the air intake system that in this case is controlled by the ECU. This is used as both an anti shudder valve and EGR, as a diesel doesn't produce vacuum in the inlet manifold the flap is used to create a depression behind that draws the exhaust gas back into the system. Technically as Skoda see it and it's kinda lost in translation a bit a throttle is anything that limits flow, so it's a throttle body.

And tbh I've not had another issue other than the throttle body itself, pretty good bet that's the issue.

Thanks for the info.

Would an EGR & ASV delete solve the problem?

Yeah if you can get is mapped out, not sure on what the current deal is with the electronic ones.

Just to update this thread. Visited Shark Performance this week for a map tweek following the fitment of a decat exhaust. Ben and Mikko worked their magic and have successfully 'mapped out' my failed EGR/ASV.

Thanks Chaps

For anyone else wondering if it can be done..... Yes!! it can :yes: