Emission override, federal system

Years 1998–01 Models 9 Factory citations 14

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Also documented for Buick Cadillac Chevrolet GMC Pontiac Saturn

Documented applications

Achieva — N-body (1992–1998)

1998 Factory-verified internal

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

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)

1999–2001 Factory-verified internal

GM factory document — 1999 oldsmobile bravada rpo code list, p.1.
GM factory document — 2001 oldsmobile bravada rpo code list, p.1.

Cutlass — N-body (1997–1999)

1998 Factory-verified internal

shared N-body code; Chevrolet Malibu kit.

GM factory document — 1998 oldsmobile cutlass rpo code list, p.1.
GM Heritage factory kit — 1998 Chevrolet Malibu, p.6.

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

1998 Factory-verified internal

GM factory document — 1998 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 — 1999 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)

1999–2000 Factory-verified internal

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 NC7 in the Oldsmobile reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.