- 1986, 1987 Factory-verified
1986: Cavalier, CS and RS; 1987: RS
GM Heritage factory kit — 1986 Chevrolet Cavalier, p.37.GM Heritage factory kit — 1987 Chevrolet Cavalier, p.37.
PX1 Factory-verified
Also documented for Pontiac
Documented applications
- 1989 Factory-verifiedGM Heritage factory kit — 1989 Chevrolet Cavalier, p.22.
This page aggregates every documented appearance of PX1 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.