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Link G4+ Plug In ECU

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Product Description

Details

The G4+ Plug-In standard kit includes:

  • G4+ Plug-In ECU
  • MAP sensor for applications where no factory MAP sensor fitted
  • Anti static strap
  • Wiring and Installation Instructions

Plug-In ECUs that deliver.

  1. Take your car into a qualified Link Installer.   They will....
  2. Locate the original factory ECU, unplug the loom and remove the enclosure from the car.
  3. Open the enclosure and remove the original PCB.  Install the Link G4+ Plug-In ECU, it will fit beautifully. Re-install the enclosure into the car
  4. Plug in the loom.
  5. Fit a MAP (Manifold Air Pressure) line from the ECU to the engine’s inlet manifold.
  6. Plug the supplied USB cable into a laptop PC and connect using PC Link G4+.
  7. Start the engine (it should start immediately and run smoothly) and drive the car onto the dyno.
  8. Dyno tune the car to make it the best it can be, all in a minimum of time.
  9. Enjoy your car now that it makes exciting power, idles beautifully, starts cleanly and drives smoothly.

All G4+ Plug-In ECUs run the same powerful micro controller and firmware as the G4 Xtreme.

G4+ Plug-In Key Features (where applicable)

  • Up to 6D fuel and ignition mapping
  • Precision closed loop cam control (four cam, independent control)
  • Sequential fuel delivery
  • Digital triggering, all OEM patterns
  • Rotary - up to four rotors, fully sequentially staged injection and sequential ignition
  • OEM idle hardware supported
  • 5D boost control with three switchable tables
  • Motorsport features - antilag, launch, flat shift
  • Continuous barometric correction (on board)
  • CAN port
  • QuickTune - automated fuel tuning
  • Individual cylinder correction
  • USB tuning cable included
  • Stats recording into on-board memory
  • Gear compensations for spark, boost and fuel
  • Real time selectable dual fuel, ignition and boost maps
  • Sync and crank sensors can be a combination of Hall effect, variable reluctance or optical
  • Boost control referenced to gear, speed or throttle position
  • Up to 4MB internal logging memory
  • Staged injection
  • Firmware updates available
  • Knock with “windowing” either via feature upgrade or additional G4 KnockBlock

KnockBlock G4 Interface

Knock, also known as detonation refers to the spontaneous combustion of an air/fuel mixture inside a combustion chamber.  Knock is induced by excessive pressure within the combustion chamber causing the air/fuel mixture to self detonate.  These pressures can be a result of high engine temperature, inappropriate turbo boost pressure, excessive inlet air temperature, and ignition timing which is over advanced.

Knock control can be enabled in the Link G4+ Plug-In by two methods:

  • Via built-in feature upgrade (if original ECU had knock control) OR
  • With the addition of the KnockBlock G4 as an interface. Information is passed between the two devices using one auxiliary channel and one digital input. This allows configurable ‘time windowing’ techniques enabling the Plug-In to determine which cylinder has knock, and the severity of the knock.  3D knock level threshold tables are used to prevent false detection caused by mechanical engine noise.

Each individual cylinder can be assigned with a 3D knock ignition trim table.  These tables are generally spanned using ‘RPM’ and ‘Load’ as their axis, and zones within these tables are modified dynamically by the ECU upon detection of knock.  Timing is retarded on detection of knock in the particular zone, using configurable sensitivity and clamping properties.  This all happens within the bounds of microseconds.

The G4 Plug-In can be configured to gradually re-introduce timing advance, at a rate governed by the speed and delay of which the user has specified in the settings when knock is no longer detected.

On Board Data Logging

The latest G4+ firmware version enables the ECUs on board data logging functionality.  On board data logging is an essential feature for tuning and motorsport diagnostics.  On board data logging allows ECU information to be recorded directly to memory inside the ECU.  Recorded information can be retrieved for analysis at a later stage.

All G4+ ECU's are built with 32Mbit flash memory fitted.  This is significantly more data logging memory than competitors' ECUs.  The ECU can be configured to record a large number of parameters at various rates.  High capacity memory allows for recording of approximately 100 parameters at a rate of 50 times per second for nearly 14 minutes. Slower rates allow for over 11 hours recording time.

The ECU can be configured to start recording when an external switch is turned on or based on some internal condition.  Log files are independently recorded and can be retrieved without downloading the entire ECU memory.

Quick Tune

Using PC Link, QuickTune is an interactive tuning tool that assists in time efficient fuel tuning.

A graphical display of Target AFR (desired AFR) and Actual AFR (measured AFR) is provided.   A dual pointer gauge allows the tuner to quickly see how close Actual AFR is to the Target AFR.  QuickTune can be setup to operate over the entire fuel table or just over a particular area.

QuickTune can be used in Manual or Automatic modes.  In Manual mode, QuickTune guides you to cell centering and advises you when is a suitable time to make a fuel table adjustment.   With the press of a key a calculated adjustment is made.  Often only one or two adjustments are required to tune each cell.  In Automatic mode QuickTune does all the adjustments for you.   This leaves the tuner free to operate the Dyno or perform other tuning work such as making ignition or cam angle adjustments.

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