- 1982 Single-source
the launch engine; Wikipedia's Firenza article (infobox and Engines list) and its 122 engine article give it to the Firenza for 1982 only; the carburetor is a 2-barrel in the merged Skyhawk and Cavalier docs, which Wikipedia's Firenza article does not say
L46 Single-source
Also documented for BuickCadillacChevroletPontiac
Documented applications
This page aggregates every documented appearance of L46 in the Oldsmobile reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.