Autronic SM3

Essentially the SM3 is a stripped down version of the SM4 ECU, designed for a maximum of 6 cylinder's.

Instead of 8 injector driver's, with more than 5 ohm resistance, the SM3 is aimed at the 4 to 6 cylinder market. Whilst the SM3 still has the 8 injector pins, numbers 7 & 8 can instead be used as input switches. The SM3 only other limitation is that it can also only run one adjustable camshaft, otherwise everything else is just like the more more expensive SM4, including launch control, traction control and the superior fuel control that SM4 has.

See also...

Autronic PNP

Autronic 500R DFCDI

Autronic SM4

Autronic AF Meter

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