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Tec3r Manual Version 1.11
- Page 114 -
©2017 Electromotive, Inc.
Appendix I. Electromotive Tec3-r ECU Specifications
Outputs
Fuel Injector Drivers
o
8 x 4.4/1.1amp peak-and-hold injector drivers
6 drivers with Tec3-r
o
Up to 16 low or high impedance injectors can be driven
Up to 12 injectors with Tec3-r
o
Low impedance injectors: 2 per driver (1 - 2.6
per driver)
o
High impedance injectors: 1 or 2 per driver (greater than 6
per driver)
o
TBI injectors: 1 per driver (1 - 1.6
per driver)
Coil Outputs
o
4 x 9amp direct-fire coil drivers
6 drivers with Tec3-r
o
Feedback charging loop for ideal cylinder-to-cylinder consistency
o
No “ignition modules” or “CD” boxes needed
Idle Air Control (IAC) Motor
o
Provides control of 4-
wire stepper motor IAC’s
o
Adjustable idle speed increase for cold starts
o
Adjusts idle speed in response to engine load (i.e. A/C activation)
Gen
eral Purpose Outputs (GPO’s)
o
4 channel low-amp pull-to-ground outputs
o
Channels 1 & 2 have pulse-width capability
o
Channels 1-4: on/off activation for fan relays, torque converters, waste gates, etc.
o
4 amps max total current draw for GPO1-4 (1 amp per channel if all four are used)
Spare Output
o
Provides Datalog status light
o
1 amp max current draw
Fuel Pump Control
o
Low current pull-to-ground output for activation of fuel pump relay
o
Configurable for fuel system priming
Tachometer Output
o
Drives modern 0-12 volt tachometers
o
Amplifier available for high voltage triggered tachometers
Check Engine Light Output
o
Multi-code diagnostic tool for sensor failures
o
Pull-to-ground output for instrument panel light (1 amp max current draw)
ECU Diagnostic LED
o
Warns of crank trigger problems
o
Multi-code diagnostics
ECU Cooling Fan
o
Turns on with unit
o
Allows for sustained ultra-high rpm operation w/ low impedance injectors
Inputs
General Purpose Inputs (GPI’s)
o
Channels 1-4 are 0-5 Volt analog inputs
o
Channels 3 & 4 may also be used for speed inputs (magnetic, optical, and hall effect
sensors are supported)
o
Provides fuel and ignition trims, datalog enable, valet switch, NOS retard, and more
