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Service bulletin WWG90

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id633865
Published by NHTSA2002-09-26
Manufacturer's numberWWG90
Manufacturer's date2002-05-01
NHTSA componentFUEL SYSTEM, GASOLINE

NHTSA's summary

SUBJECT REGARDING AIR FLOW METER SENSOR. *JG

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Fuel system

Vehicles listed
SUBARU FORESTER1999
SUBARU IMPREZA1999
SUBARU LEGACY1999

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
037012R-12023-04-24. Service bulletin. Repair Procedure for High-Pitched Sound from Extension Housing Area Using Latest Generation Production Parts
1167022002-07-11. Service bulletin. SUBJECT REGADING AIR FLOW METER SENSING UNIT AVAILABILITY. *TT
1159002000-05-05. Service bulletin. SUBJECT REGARDING AIR INTAKE CHAMBER BOX BREAKAGE. *TT