Engine, gas, 4 cylinder, 2.2 L, multiport fuel injection

Years 1998–00, 2003–04 Models 1 Factory citations 5

Also documented for Buick Chevrolet Oldsmobile Pontiac

Documented applications

Sonoma — second generation (1994–2004)

1998–2000, 2003–2004 Factory-verified

1998–1999 lists read 2.2 liter L4; Wikipedia gives the second generation Sonoma a 2.2 L four-cylinder

GM factory document — 1998 gmc sonoma pickup 4wd rpo code list, p.1.
GM factory document — 1999 gmc sonoma pickup 4wd rpo code list, p.1.
GM factory document — 2000 gmc sonoma pickup 4wd rpo code list, p.1.
GM factory document — 2003 gmc sonoma pickup 4wd rpo code list, p.1.
GM factory document — 2004 gmc sonoma pickup 4wd rpo code list, p.1.

This page aggregates every documented appearance of LN2 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.