Mallory Ignition ACCEL DFI Dual Sync Distributor 77100 User Manual
Accel/dfi dual sync distributor
1
ACCEL IGNITION
www.accel-ignition.com
FORM 1540
Go to section 2 if you are doing the installation with the Dual Sync installed in the engine.
NOTE: Make sure that the injector harness, BLUE Trigger wire (EST) going to your 6A ignition box and your ignition coil are
disconnected until you reach step 27.
1. Remove the cap from your distributor. Verify which direction the rotor / distributor shaft turns when the engine is cranking
(either clockwise, or counter-clockwise).
2. Rotate the engine to Top Dead Center of cylinder #1. If replacing another distributor, verify that the rotor is now pointing
at the spark plug wire for cylinder #1.
3. If replacing another distributor, disconnect all wires and remove the distributor from the engine.
4. Attach the Dual Sync Distributor adapter wire harness (part # 77101) to the DFI Gen 7 main wire harness, ensuring that the
ground leads are connected to an appropriate grounding point on the engine. Then plug both the CAM & CRANK connectors
to the Dual Sync Distributor.
5. Turn the ignition to the Key-On, Engine-Off position, and launch the DFI CalMap Engine Management Software program.
6. Select the “Online to ECM” data source, and go to the Engine Configuration screen by pressing the CTRL-S key combination,
or selecting the System menu item from the Configuration menu.
7. From the Injection Type drop-down list, select Sequential then press the F10 key on your keyboard.
8. If you are running CalMap version 3.0 or higher, from the Ignition Type drop-down list, select Dual Sync Distributor or Hall
Effect equivalent, then press F10 and skip to step 15. If you are running CalMap version 2.0 or lower, complete steps 9-14.
9. Change the Crank Trigger Edge switch to the Falling position and press F10.
10. Change the Crank Trigger Edge switch to Falling and press F10.
11. Change the Output Trigger Edge switch to Rising, and press F10.
12. Change the Crank Signal Input Type to Hall Effect and press F10.
13. Change the Cam Signal Input Type to Hall Effect and press F10.
14. Change the Output Signal Type to Sync Points, and press F10.
15. Verify that the Fuel Injector Firing Order is set to the desired firing order, and press F10.
16. If no error messages were observed, exit the CalMap program using the File>Exit menu command, by pressing the
CTRL-X key combination, or by clicking on the Gen 7 DFI icon on the lower right portion of the screen. If any error messages
were present, repeat steps 6-15.
ACCEL/DFI Dual Sync Distributor
(with distributor out of engine)
INSTALLATION INSTRUCTIONS