Delco ECM Wiring Schematics
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Delco ECM Wiring Schematics
JD Camira - 1.8 litre TBI
(WIRING SCHEMATICS NOT YET AVAILABLE)
JE Camira - 2.0 litre PFI
Lada Niva - 1.7 litre TBI
LD AStra/N13 Pulsar - 1.6 TBI
LD AStra/N13 Pulsar - 1.8 PFI
Last edited by Poida on 12 Apr 2009, 22:19, edited 1 time in total.
Delco 4 cyl ignition circuit
Hacked together from a couple of sources:
The ignition module converts the AC wave from the reluctor in to a DC square wave. This is fed back to the ecu, and below 400 RPM switches the coil giving 10 degrees constant advance for start up. If you were to disconnect the 4 pin connector you should still get spark with constant advance at any rpm.
Then above 400 RPM the ECU raises the bypass line which switches the relay and the square wave then comes from the ECU which includes the programmed advance in the timing. This is normal operation.
The module switches the coil negative.
Hacked together from a couple of sources:
The ignition module converts the AC wave from the reluctor in to a DC square wave. This is fed back to the ecu, and below 400 RPM switches the coil giving 10 degrees constant advance for start up. If you were to disconnect the 4 pin connector you should still get spark with constant advance at any rpm.
Then above 400 RPM the ECU raises the bypass line which switches the relay and the square wave then comes from the ECU which includes the programmed advance in the timing. This is normal operation.
The module switches the coil negative.