Throttle knocking

Old 01-12-2019, 02:56 PM
Junior Member
Thread Starter
Join Date: Jan 2019
Location: Rochester NY
Posts: 2
Exclamation Throttle knocking

2012 CC R-Line 2.0T
engine light is on, showing code P2015 and engine knocking noise when stepping on accelerator.
noise stops when foot is off accelerator...returns when accelerates.
noise is absent when in neutral and gasing the throttle.
possible Intake Mainfold loose flap??? Any other guesses?
thank you in advance.
Old 01-13-2019, 08:27 AM
Keithuk's Avatar
Super Moderator
Join Date: Sep 2009
Location: Stoke on Trent, England
Posts: 2,213

First posts normally go in introductions else you could get a free fix and we never see you again!!!

Default Welcome to Volkswagen Forum - Rules & Recommendations

That's a common error code you can Google.

VAG Error Code: 18447/7859/7156/2968/2970/008213

EOBD II Error Code: P2015Fault Location:
Intake Manifold Flap Position Sensor, Bank 1 - Implausible SignalPossible Cause:
Malfunction Indicator Lamp (MIL)(K83) active.
Power Loss.

Intake Manifold Flap faulty.
Intake Manifold Flap Motor (V157) stuck/faulty.
Broken gears.
Engine Control Module Software/Firmware Version faulty.
Wiring/Connector(s) from/to Intake Manifold Flap Motor (V157) faulty.

Possible Solutions:
Check/Replace Wiring/Connector(s) from/to Intake Manifold Flap Motor (V157).
Check Intake Manifold Flap.
Check/Replace Intake Manifold Flap Motor (V157).
Perform Output Tests/Basic Setting.

Special Notes:
In some Cases the Issue can only be resolved by Replacing the whole Intake Manifold.
The Intake Manifold Flap Motor (V157) and Intake Manifold Tuning Valve Position Sensor (G336) may be Part of the same Unit.
When found in a VW Golf/Jetta (1K): 1.9l PD-TDI (BRM), check Engine Control Module (ECM) Software Version:
03G-906-016-AB @ 7328 or 7550 as well as 03G-906-016-AC @ 7280 or 7551 do have a Software Error which requires a special Adaptation for the Intake Manifold Flap Motor (V157) which at this Point can only be performed with the Factory Tool

As taken from my new EOBD II Fault Codes Software

Last edited by Keithuk; 01-13-2019 at 08:30 AM.
Old 01-13-2019, 01:29 PM
Junior Member
Thread Starter
Join Date: Jan 2019
Location: Rochester NY
Posts: 2

Keithuk Thank you for he reply. Didn't mean to break forum rules on my first thread.
Thank you for the P2015 info. Looks like I am going to need a dealer to look at this. Intake Manifold swap is above my toolbox inventory.
Related Topics
Thread Starter
Last Post
Volkswagen Jetta/Bora
08-09-2009 02:56 PM
Volkswagen Jetta/Bora
10-09-2008 06:25 PM
Volkswagen Jetta/Bora
10-09-2008 05:22 PM
VWF Help & Suggestion Center
09-14-2007 09:02 AM
General Tech
08-09-2006 11:29 PM

Thread Tools
Search this Thread
Quick Reply: Throttle knocking

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.