Air Induction - MIL ON/DTC's P171/P2187 Set
24 07 10Oct. 10, 2007
2013155 Supersedes T.B. Group 24 number 06-01 dated Nov. 8, 2006 due to VIN correction and update to warranty table.
Vehicle Information
Condition
Malfunction Indicator Lamp (MIL) Illuminated, DTCs P0171, P2187 Stored in ECM Memory
MIL ON and one of the following DTCs are stored in the ECM data memory.
Technical Background
The condition may be the result of the incorrect positioning of the air filter element (see illustration) due to the deformation of the back side of the lower air filter housing. The change in the air flow distribution inside the air filter housing results in an inaccurate output signal from the mass air flow sensor -G70-.
Production Solution
Improved air filter housing is installed during production beginning with VIN:
^ new GTI: 1K_6W021873
^ Jetta: 1K_6M793631
^ Passat Sedan (Emden): 3C_6E215391
^ Passat Wagon (Emden) 3C_7E008637
^ Passat Sedan (Mosel): 3C_6P206335
^ Eos: 1F_7V006326
Service
If the air filter element cannot be correctly positioned because the lower air filter housing is deformed:
^ Replace the air filter housing, see Repair Manual Group 24 Mixture preparation system, electronic inj.,Gas in ElsaWeb.
Warranty
Required Parts and Tools
No Special Tools required.
Additional Information
All part and service references provided in this Technical Bulletin are subject to change and/or removal. Always check with your Parts Dept. and Repair Manuals for the latest information.