MoTeC M880 - Manual (Page 25)

MoTeC Installation 23
REF / SYNC Alignment
Most modern distributors supply both REF and SYNC signals in which case
the alignment is pre-set.
When using separate REF and SYNC sensors the alignment of the two
sensors relative to one another is critical. Ensure that the sensors are aligned
correctly for the type of trigger system being used. Refer to the appropriate
drawing. Allow for any slop in the distributor drive system if the SYNC signal
is derived from the distributor.
Exhaust Gas Sensor (Lambda Sensor)
The ECU may optionally use a wideband exhaust gas sensor for data logging
or closed loop control of the Air Fuel Ratio.
The ECU is compatible with the Bosch LSU wideband sensor and the NTK
wideband sensor. These sensors are different to the sensors used on
previous model ECUs.
Note that the sensor heater must be connected to these sensors at all times
and must be controlled by the ECU by connecting it to one of the Auxiliary
Outputs.
The sensor should preferably be placed within 0.5 m of the collector pipe on a
normally aspirated engine or 0.5 m of the turbo on a turbo charged engine. If
placed too close to the exhaust outlet the reading may be effected by the
outside oxygen.
The sensor can be contaminated by exhaust manifold sealant - use an
exhaust gas sensor friendly sealant.
The lifetime of the Sensor will be significantly reduced by leaded fuels.
Refer to the MoTeC Tech Notes and Drawings for more details.
Wiring
Wiring Drawings
Refer to the Loom wiring diagram for the loom wiring details. Refer to the
drawings at the back of this manual for more general wiring details.
The wiring details for the REF and SYNC Trigger Sensors and the Ignition
Module are specific to the type of sensors and Ignition system. MoTeC can
provide wiring diagrams for most Trigger Sensors and Ignition systems.