GM Service Manual Online
For 1990-2009 cars only

NEW OXYGEN SENSOR P/N PRODUCTION RELEASE

A new oxygen sensor, Part Number 8990741, type AFS-16P, is being released for late 1984 production. Any time an oxygen sensor replacement is required on the 1982-1984 engines below, the new part number should be used.

Engine RPO Engine Size Car Line ---------- ------------ --------- LR8 2.5L 6000, Phoenix, Fiero LH8 1.8L 2000 Sunbird LA5 1.8L Turbo 2000 Sunbird LQ9 2.5L Firebird

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.