Engine Controls - MIL On / DTC P2015 and/or P2020
24 08 662012844/2
November 19, 2008. Supersedes Technical Service Bulletin Group 24 number 06-01 dated September 22, 2006 for reasons listed below.
Vehicle Information
01 MIL on DTC's P2015, 2020
Condition
MIL on with DTC P2015 and/or P2020 in the ECM memory.
Technical Background
Possible cause is a vacuum leak at the vacuum supply hose fitting for the Intake Manifold Runner Control (IMRC) valve N316. The vacuum supply hose fitting is located underneath the center of the intake manifold.
Photo shows underside of intake manifold.
Photo shows the hose clamp on the vacuum supply fitting.
Production Solution
Improved hose clamp N 102 105 01, which is larger in diameter to prevent damage to vacuum hose when the clamp is crimped.
Service
- Remove intake manifold and check vacuum hose and hose clamp underneath the intake manifold at the supply fitting.
- If hose is cut or damaged replace vacuum hose # 079 133 773 and install new hose clamp # N 102 105 01.
- Only use VAG1275 or equivalent hose clamp pliers to crimp hose clamp.
- Verify that the new hose clamp did not cut or damage vacuum hose when crimped.
- Replace intake manifold gaskets and reinstall intake manifold.
- Check and erase DTC's in both ECM's and set readiness codes.
Warranty
Required Parts and Tools
Tool Number Tool Description
VAG1275 or equivalent Hose clamp pliers
All part and service references provided in this TSB are subject to change and/or removal. Always check with your Parts Dept. and service manuals for the latest information.