Certification, emission, California

Years 1989, 1998–01 Models 8 Factory citations 12

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Also described as Emissions, California

Also documented for Buick Cadillac Chevrolet GMC Hummer Pontiac Saturn

Documented applications

Alero — N-body (1999–2004)

2001 Factory-verified internal

GM factory document — 2001 oldsmobile alero rpo code list, p.1.

Aurora — G-body (1995–1999)

1998 Factory-verified internal

GM factory document — 1998 oldsmobile aurora rpo code list, p.1.

Aurora — G-body (2001–2003)

2001 Factory-verified internal

GM factory document — 2001 oldsmobile aurora rpo code list, p.1.

Bravada — GMT330 (1996–2001)

2001 Factory-verified internal

GM factory document — 2001 oldsmobile bravada rpo code list, p.1.

Cutlass Ciera — A-body (1982–1996)

1989 Single-source internal

the 1989 order guide lists it as a must-order emissions choice; shared A-body code; cited from the Chevrolet Celebrity kits; no Ciera source names it, so the row rests on the kit pages alone

GM Heritage factory kit — 1989 Chevrolet Celebrity, p.10.

Eighty Eight (LSS) — H-body (1992–1999)

1998–1999 Factory-verified internal

GM factory document — 1998 oldsmobile eighty eight rpo code list, p.1.
GM factory document — 1999 oldsmobile eighty eight rpo code list, p.1.

Intrigue — W-body (1998–2002)

1998, 2000 Factory-verified internal

GM factory document — 1998 oldsmobile intrigue rpo code list, p.1.
GM factory document — 2000 oldsmobile intrigue rpo code list, p.1.

Silhouette — U-body second generation (1997–2004)

1998–2000 Factory-verified internal

GM factory document — 1998 oldsmobile silhouette ext rpo code list, p.1.
GM factory document — 1999 oldsmobile silhouette ext rpo code list, p.1.
GM factory document — 2000 oldsmobile silhouette ext rpo code list, p.1.

This page aggregates every documented appearance of YF5 in the Oldsmobile reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.