Infinity adapter harness – AEM 30-3510 Infinity Plug & Play Harnesses - BMW 2001-2006 E46 M3 User Manual

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P/N 30-3510

INFINITY ADAPTER HARNESS

Included with the BMW E46 M3 kit is an adapter harness. This is used to make the connection between
the AEM Infinity EMS and the BMW wiring harness plug and play. This is depicted below with the 73-pin
and 56-pin connectors and the BMW M3 header. There are also a few other integrated connectors within
this harness described below.

The gray Deutsch 6P DTM “Lambda #1” and “Lambda #2” plugs are for connecting UEGO wideband
Bosch LSU4.2 sensors (AEM 30-2001). The UEGO extension harness (AEM 30-3600) mates the
adapter harness to the sensor (1 required for each sensor used). Note: Even though the BMW S54
engine architecture is inline, the stock exhaust system pairs the cylinders (1,2,3 and 4,5,6) into 2
separate banks. For this case, 2 sensors are recommended. If a single turbocharger is used, 1 sensor is
sufficient.

The gray Deutsch 4P DTM connector is used for “AEMNet”. AEMNet is an open architecture based on
CAN 2.0 which provides the ability for multiple enabled devices, such as dashboards, data loggers, etc.,
to easily communicate with one another through two twisted cables (CAN+/CAN-).

The black Delphi 2-pin “Flash Enable” connector is used for secondary hardware flashing. The included
shunt connector jumps the 2 wires together. Once initially flashed, the EMS is normally upgraded in the
software, not using this connector.