мой бортовой компутер + ццц.neons.org

12 Battery or computer recently disconnected
- Fraser Shortt said code 12 appeared with some other codes
in 1989 and possibly later computers as well.

21 Oxygen sensor signal doesn"t change (stays at 4.3-4.5V)
Probably bad oxygen sensor - ну это обычное дело. "Неоновая болезнь".

43 Peak primary coil current not achieved with max dwell time OR
43 Cylinder misfire OR
43 Problem in power module to logic module interface

Cylinder misfire! Бля, ну прикинь! Хотя я так и думал...