Well sometimes the books are wrong. Digifant I came before Digifant II. In fact if you check the wiring diagrams for a golf/Digifant II and Vanagon/digifant I you will see that they are almost identicle. Digifant II just has additions (no changes) when compared to digifant I Anyway I have opened up a digifant I box and it uses a really cheap 8 bit processor. This limits the resolution that it can adjust and measure things like mixture, timing and temperature. Consider that many of todays car ECU's have 32 bit brains. The older L-Jetronic in 75-79 loafs used an analog computer that was capable of measuring and controlling to much finer levels but they were not without problems either. |
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