4G63 Trigger Information

4G63 Trigger Information

Sensor Information


Crank/Cam Sensor

Early models use a cam angle sensor located on the rear of the head above the flywheel.  From the EVO 4 onward the 4x trigger was relocated to a 2x crank trigger.  The pattern is the same, however timing precision is improved.

CAS (Cam Angle Sensor) Models

This engine variant uses a cam sensor that incorporates the crank and cam sensor signals.  The EVO models have an optical disc, but other 4G engines use a chopper wheel, but they provide the same signal pattern.

  

Optical Disc Type
 

Chopper Wheel Type





Wiring


Pin
Function
Haltech Connection
1
2x Cam Signal
Home + (Yellow in Home 4-core)
2
4x Crank Signal
Trigger + (Yellow in Trigger 4-core)
3
Power
12V+ (Red in Trigger 4-core)
4
Signal Ground
Signal Ground (Blue in Trigger 4-core)

Trigger and Home Wiring Hack

A common hack to make wiring simpler is to do the following:

In the Grey shielded Trigger 4-core cable we have 12V+, Signal Ground, Trigger+, and Trigger-.   We need all of these wires except for Trigger-
In the Grey/Black shielded Home 4-core cable we only need the Home+
If we relocate the Green Trigger- wire so that instead of going to this ECU pin it instead goes to the Home+ ECU pin we now have all of the wires we require in a single 4-core cable.

For Elite 550 / 750 / 950
1. Remove the Yellow wire from ECU pin A32 and insulate it. It will not be used.
2. Remove the Green wire from ECU pin A33 and move it to A32.

For Elite 1000 / 1500 / 2000 / 2500
1. Remove the Yellow wire from ECU pin B2 and insulate it. It will not be used.
2. Remove the Green wire from ECU pin B5 and move it to B2.








Crank Sensor Models EVO4-on

A Hall Effect crank position sensor is used. Although now mounted on the crank, the signal provided to the ECU is the same as for the earlier CAS models so settings remain the same.  EVO 9 have the came sensor pattern inverted requiring a different trigger pattern to be selected but again the settings are the same.








Crank Sensor Wiring




Pin
Description
Haltech Connection (Trigger 4-core)
1
Signal Ground
Signal Ground (Blue in Trigger 4-core)
2
Signal
Trigger + (Yellow in Trigger 4-core)
3
Power
12V+ (Red in Trigger 4-core)




Cam Sensor

A Hall Effect cam sensor is used and this is located on the exhaust camshaft.







Cam Sensor Wiring





Pin
Description
Haltech Connection (Home 4-core)
1
Signal Ground
Signal Ground (Blue in Home 4-core)
2
Signal
Home + (Yellow in Home 4-core)
3
Power
12V+ (Red in Home 4-core)


It is possible for engine builders replacing camshafts to install the cam trigger backwards.  This will flip the TDC Offset by 360deg.






Trigger Configuration - EVO 1-7




Trigger Configuration EVO 8MR-9







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