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Start VemsTune, select the COM port that is connected to the ECU. You may notice that a TCP connection
is also supported if you have a TCP serial adapter.
Connect essential sensors
Crank Trigger
The trigger is the engine management system's most fundamental sensor, without one VEMS
cannot calculate engine speed or crank angle. If you are connecting VEMS to an engine that has
an existing engine management system, if not then a triggering method will need to be put in
place.
The simplest type of trigger is to use the existing distributor to provide a pulse for each cylinder.
This type of trigger is more than adequate for driving ignition through a distributor and batch fire
injection.
Connecting the primary trigger (Crank)
Magnetic sensor / Variable reluctance (VR)
Mechanical considerations
If you are fitting a crank sensor to an engine it is advisable to use a hall sensor rather than
a VR sensor. They are more forgiving to wheel design and noise. Generally, VR sensors
should be used in applications utilizing factory sensors.
The VR sensing circuitry is very sensitive to electrical noise, shielded cable (coax) must be used
and good grounding is vital.
•
EC36-pin27 VR+ Note that some other ECUs trigger on positive-going edge so their schematic
might mark the + and GND swapped: so don't blindly follow naming from autodata pinout or
some schematic, keep in mind that + and - might need to be swapped. Measure to be sure:
InputTrigger/TriggerLog
•
EC36-pin26 VR-
Shielding should be grounded to engine block close to the VR Sensor.
Hall Sensor
Содержание v3 ECU
Страница 1: ...12 16 2012 Installation Instructions and Setup Guide Jason Russell...
Страница 26: ...26 List of Authorized Resellers...
Страница 27: ...27 Appendix Connector pinout...