NU4 Factory-verified

Pontiac · Regular Production Option

Emission system, California, LEV2 plus

Years 2003–07 Models 8 Factory citations 13
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Also described as Emission system, California LEV2 plus

Also documented for BuickCadillacChevroletGMCHummerOldsmobileSaturn

Documented applications

This page aggregates every documented appearance of NU4 in the Pontiac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.