1999-2001 Harley-Davidson Twin Cam 88 FI Controller Installation MANUAL

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Filed Under (Harley Davidson) by admin on 25-03-2012

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Remove the seat. Remove or raise the fuel tank. The tank needs to be raised enough to give access to the fuel injectors and TPS wires. Unplug the front injector. On the FI Controller, there are 2 pairs of injector connectors. Plug the pair with the orange wires into the front cylinder injector harness and front cylinder injector. Repeat this using the other connector pair and the rear cylinder injector. Locate the TPS connector behind the throttle body. STEP 1 STEP3 STEP2 Installation Part# DFCH-2 2 Rear Cylinder Injector Front Cylinder Injector TPS Connector STEP 3 STEP 2 STEP1 Unplug the connector from the TPS. Crimp the wire tap onto the wire that is grey with a purple stripe. This wire should be in position “C” on the connector. Plug the grey wire from the FI Controller into the wire tap. Run the wiring harness for the FI Controller from the engine to the seat. Make sure that it will not get damaged when you reinstall the tank. Use one of the wire ties to tie the wires to the frame, away from the cylinder head. Place the FI Controller where you plan on mounting it permanently. In most cases, this will be under the seat. Connect the ground lug (black wire) to a grounding point on the bike. Use the Velcro tape to mount the FI Controller in position. Use alcohol swab to clean mounting surface prior to attaching Velcro. Reinstall fuel tank and seat. STEP 4 STEP 6 STEP 5 STEP4 STEP6 STEP5 Installation Part# DFCH-2 3 FI Controller
For Tech Support: 800.928.3962 Controls The FI Controller is preprogrammed with 4 base fuel curves. The curves are selected using the switch labeled BASE. These curves adjust fuel delivery based on throttle position and RPM, providing the right amount of fuel under all conditions. The 4 fuel curves correspond to varying levels of performance modifications. The levels of modification are broken down into the following groups. Base Curve 1 – Stock or basic modifications. This includes slip on exhausts, intakes, air boxes, and air filters. It will also work for headers or full exhaust systems. Base Curve 2 – Motor upgrades. This includes cams, 95 ci motors. Base Curve 3 – More extensive motor upgrades. This includes 103 ci motors, cams, ported heads