This system is a further renement of the LE systems but also utilizes closed
loop lambda control.
L3-Jetronic
The ECU for the L3-Jetronic forms part of the air ow meter installation. The
ECU now includes a ‘limp home’ facility. The system can be operated with or
without lambda closed loop control. The air–fuel ratio can be adjusted by a
screw-operated potentiometer on the side of the ECU.
LH-Jetronic
The LH system incorporates most of the improvements noted above. The main
difference is that a hot-wire type of air ow meter is used. The component
layout is shown in Figure 8.36. Further developments are continuing but, ...
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