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XDI200 Manual Version 0.1
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©2017 Electromotive, Inc.
Figure 6:
Wiring layout for crank and cam sensors. Note that the Cam Sensor is only used when full
cylinder to cylinder timing trim is needed. The wiring is the same if a Hall Effect sensor is used on the
crankshaft wheel.
3.3.5 Verifying Trigger Wheel Timing
The most important step in the trigger wheel installation process is to check the ignition
advance with a timing light. A timing indicator (pointer) should be attached to the engine block,
and it should point at a line on the crankshaft pulley or trigger wheel when the engine is at TDC
#1. When running the engine, verify that the timing value read by the timing light corresponds to
the timing
value in the software’s engine monitor screen.
Use of a good-quality inductive timing light is recommended. DO NOT use a timing light
that goes between the spark plug and spark plug wire with a clamp probe. Dial-Back inductive
timing lights can be used, but will need to be dialed to DOUBLE the actual desired timing value
due to the waste-spark firing of the DFU coils. They are fooled into thinking that the timing is
twice as advanced as it actually is.
