LH-Jetronic
Bosch fuel injection system, ~1982–1995 — the oldest family supported.
| Era | 1982–1995 |
| File sizes | 8–64 KB (typical — there is no size gate) |
| Vehicles | Volvo, Porsche 928 S4, BMW E34, Mercedes W124/W126, Saab 900/9000 |
Detection
Three checks, and no size gate:
- Reject if any exclusion signature is present in the first 512 KB.
- Accept on a strong positive signature (
LH-JET,LH24x,LH22x). - Accept on the Format A anchor
\xd5\x28in the last 1 KB, provided the file starts with a known LH header byte (\x01\x60,\x01\x40or\x00\x60).
No 1037-style software version — the match key falls back to the calibration ID. Checksums: no family profile.