TCFI3 Auto-Tune Fuel Injection System
- Simultaneously auto-tunes fuel curves for front and rear cylinders under actual riding conditions with new WEGO IIID dual-channel wide-band oxygen sensor interface
- Fully programmable plug-in replacement for Delphi® controller
- Robust alpha-N (throttle position and rpm-based) fuel control eliminates problems with long duration/high overlap camshafts
- Full support for SAE J1850 data bus used on 04-08 models (except 08 touring models with electronic throttle control) for communications between the engine control module, instrument cluster, turn signal/security module and diagnostic scan tools
- Support for new sixth gear indicator on 07-08 models
- TCFI also has built-in data logging that stores data for the last 60 minutes of operation at 10 samples per second
- PC communications is by means of a USB interface that plugs directly into the exisiting H-D diagnostic connector
- Powerful Windows software for custom programming and extended data logging and diagnostics
- User programs a table with the desired air/fuel ratio and the system does the rest – no dyno tuning required
- Idle air control including idle rpm and cold start characteristics are fully programmable which facilitates use of aftermarket throttle bodies with higher airflow
- Kit includes TCFI fuel-injection controller, WEGO IIID dual-channel wide-band oxygen sensor interface, two Bosch LSU 4.2 wide-band sensors for front and rear cylinders, USB interface for PC Link, software and two 18 x 1.5mm weld nuts for exhaust pipe
