D.2.c. Phase-Sequential Injection
Most applications will use the phase-sequential firing option. This firing scenario pairs cylinders
that share their TDC’s to the same injector channels. As such, one injector channel fires two injectors: one
on compression and the other on exhaust. Each injector channel will fire once per revolution, so each
cylinder will see a shot of fuel on both the exhaust and compression stroke. In an 8-cylinder application,
each injector channel has its own staged injector channel. 16 low-impedance injectors could be used with
this firing scenario. See
Figure D.2. 2
for a typical 8-cylinder phase-sequential injector wiring schematic.
Figure D.2. 2:
8-cylinder phase-sequential injector wiring for firing order 1-8-4-3-6-5-7-2.
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TECgt Manual Version 2.0
- Page 54 -
©2008 Electromotive, Inc.
