EZ30D Engine

EZ30D Engine

Information on the Subaru EZ30D 6-cylinder engine.







Haltech ECU Options

This engine is only supported by the Elite 2500 model





General Information

Cylinders
6
Displacement
2997cc
Firing Order
1,6,3,2,5,4
Cylinder Orientation
Looking at the engine from the front.
1,3,5 LHS
2,4,6 RHS




CAN

This vehicles uses CAN bus for the coolant gauge on the OEM dash




Model Variants

There are a couple of variants of the EZ30D  engine.

EZ30D Series 1 (MY00-03)

10.7:1 comp, AVCS (Active Valve Control System) on inlet cams, cable throttle, variable intake length (resonance chamber), alloy intake manifold, siamesed exhaust ports (1x port per head)

EZ30D Series 2 (MY04-on)

DBW throttle, AVLS (Active Valve List System) in intake cams added, plastic intake manifold, individual exhaust port head, lighter block, hollow cams, 




Common Models

Found in the Gen 3 and 4 Liberty/Legacy and the Outback






Sensor Information

Crank/Cam Sensor

This engines uses a Crank Position Sensor and a Cam Position Sensor.  The crank trigger has 36x teeth with one group of 2 missing teeth, and one third around is 2 groups of 2 missing teeth separated by 1 tooth and is on the crank where the flywheel attaches.   The cam trigger has 3x evenly spaced teeth on 1x cam on Bank 2.









Crank Sensor

A Reluctor crank position sensor is used. This is located on the back of the block




Reluctor Wiring
Pin
Description
Haltech Connection (Trigger 4-core)
1
Reluctor +
Yellow
2
Reluctor -
Green



Cam Sensor

Hall Effect cam sensors are used. This is located at the back of each cylinder head.



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










Ignition Coils and Igniter

This engine features coil on plug direct fire ignition.  The ignition coils feature an internal igniter.  These can be wired directly to the ECU.  

Coil Wiring (Pin 1 nearest locking tab)
Coil Pin
Function
Haltech Connection
1
ECU Signal
Ignition Output (Yellow/xxxx)
2
Ground to Cylinder Head
---
3
12V+ Ignition Switched
---


Dwell










DBW Throttle System

Later models of this engine use a single Drive By Wire throttle body.

DBW Throttle Wiring


Position Sensors
Pin
Description
Haltech Connection
1
Motor+DBW1 (Brown/Black)
2
Motor-DBW2 (Brown/Red)
3Signal GroundSignal Ground (Black/White)
4TPS2AVI-3 (Orange/Red)
5
5V+
5V+ (Orange)
6
TPS1
AVI-2 (Orange/Black)




DBW Accelerator Pedal Position Sensors Connection



Pin
Description
Haltech Connection
1
5V+25V+ (Orange)
2
APP2AVI5 (Orange/Green)
3
5V+15V+ (Orange)
4
Signal Ground1Signal Ground (Black/White)
5
APP1AVI4 (Orange/Yellow)
6
Signal Ground2Signal Ground (Black/White)





Throttle Position Sensor

Early versions of this engine use a cable operated throttle body with a position sensor.
Pin
Function
Haltech Connection
1
Power
5V+
2
Ground
Signal Ground
3
Signal
AVI




MAP Sensor

This vehicle comes with a MAP sensor. This is located 



Pin
Description
Haltech Connection
1
Signal Ground
Signal Ground (Black/White)
2
MAP Signal
Spare AVI (AVI-9 Yellow)
3
5V+
5V+ (Orange)


If preferred you can use the internal MAP sensor that comes with your ECU.  For even higher boost levels an external MAP sensor should be used instead, connected to a spare AVI.









Variable Cams (AVCS)

This engine features continuously variable cam timing on the inlet cams named by Subaru as AVCS (Advanced Valve Control System). This is supported by the Haltech ECU as the Cam Control function.











Variable Cam Lift

This engine features continuously variable valve lift on the intake cams, named by Subaru as AVLS (Advanced Valve Lift System). This is supported by the Haltech ECU as the Cam Control Switched function.











Idle Valve

Later versions with DBW use the Drive By Wire Throttle to control idle speed.

Early versions have a 3-pin valve but only a single pin will be connected to the Haltech ECU. It is configured as a BAC 2-wire. Located on the throttle body.

Pin
Function
Haltech Connection
1
Signal
Spare Output
2
12V+ Switched
---
3
Ground to Head
---









Coolant Temperature


Wiring is not polarity sensitive
Pin
Haltech Connection
1
Any Spare AVI*
2
Signal Ground
An AVI with a selectable Pullup should be used.  If not and external 1k pullup to 5V should be connected.







Air Temp

An Inlet Air Temperature sensor is incorporated in the MAF unit.  If the MAF was been removed a replacement air temperature sensor should be installed as close as possible to the vacuum port used for the MAP sensor.

For wiring see the MAF Sensor section.

If an external Air Temperature Sensor is being installed wiring is as follows:
Pin
Haltech Connection
1
Any Spare AVI*
2
Signal Ground
An AVI with a selectable Pullup should be used.  If not and external 1k pullup to 5V should be connected.










Fuel Temperature

This engine has a Fuel Temperature sensor. This can be used with your Haltech ECU.
Wiring is not polarity sensitive.
Pin
Haltech Connection
1
Any Spare AVI*
2
Signal Ground
An AVI with a selectable Pullup should be used.  If not and external 1k pullup to 5V should be connected.






Oil Temperature

This engine has an Oil Temperature sensor. This can be used with your Haltech ECU.
Wiring is not polarity sensitive.
Pin
Haltech Connection
1
Any Spare AVI*
2
Signal Ground
An AVI with a selectable Pullup should be used.  If not and external 1k pullup to 5V should be connected.








Knock Sensor

This engine has 2x knock sensors.  These can be use with the Elite 2500 ECU.











MAF Sensor

Although most users of Haltech ECUs will be deleting the MAF, it is possible to use a MAF if you prefer.



Pin
Description
Haltech Connection
1
12V+ Switched
--- (Grey/Red)
2
Signal Ground
Signal Ground (Black/White)
3
MAF Signal
Spare AVI
4
Air Temp Signal
Spare AVI (AVI-7 Grey)
5
Signal Ground
Signal Ground (Black/White)






O2 Sensors

This engine comes with a total of 4x Narrow Band O2 sensors.  2x per bank with a pre and post cat sensor.  it is possible to use these sensors with a Haltech ECU however they are not so useful for engine tuning.

For correct operation a Haltech WB2 kit is highly recommended for this application, with the provided 4.9 sensors replacing the pre-cat sensors.  Sensors use a 22mm socket or spanner to remove and replace.










Injector Data

Flow

The injector flow rate is measured with the injectors held wide open at 100% duty.  For fuel systems with a fixed regulator pressure (often returnless systems) that is not referenced to manifold pressure the flow needs to be mapped over Manifold Pressure for accurate tuning.

Injector Flow: 260 cc/min

Dead Time

When an injector is commanded to open for a certain amount of time, the dead time is the amount of time the injector is not actually open during this period.  It covers the time to energise the solenoid and begin to open and the time to close as well.  There are also transient periods during which the injector is opening and closing where fuel flow is not at full capacity so this lost peak flow period is also taken into account.  















OEM ECU Information


   


ECU Pinout














Base Maps

Base maps have been created for use with the Haltech Elite Adapter Harnesses.  
To use these maps they should be IMPORTED into your ECU.  Follow the IMPORTING A BASE MAP guide.








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