Link G4X XtremeX + Terminated LS Engine Harness Bundle, Drive-by-Wire, Gen 3 / Gen 4 (109-9000B)

This bundle pairs the G4X XtremeX with Link's Terminated LS Engine Harness and the LS DBW Adapter Loom for a drive-by-wire (e-throttle) LS V8. It covers Gen 3 LS1/LS6 and Gen 4 LS2/LS3/LS7 engines, with a PCLink base map for each generation. It does not include a fuse and relay box, and Gen 4 engines need several extra parts, listed below.

In the bundle

• G4X XtremeX wire-in ECU (109-4000), 8 injection and 8 ignition drives, with its USB tuning cable, mounting bracket and quick start guide
• Link Terminated Engine Harness for GM LS Gen 3/4 (101-0300)
• LS DBW Adapter Loom (101-0304)

Highlights

• Fully programmable e-throttle control, with gear shift throttle blip and anti-lag capability
• Cruise control, traction control, launch control and full gear shift control
• Two independent CAN modules and 30 general-purpose tables (up from 20)
• Advanced closed-loop lambda strategy with dual bank lambda control
• Harness built with Link's AVSS automotive wire in standard Link colours, tested for pinout, shorts and insulation resistance before shipping
• EV1/JPT injector connectors that plug directly into common LS1 injectors
• Spare I/O on a Spares connector for extra sensors, switches or custom additions
• Sealed JPT terminals (TE Connectivity JPT family) in the chassis connector

Notes for Gen 4 engines

• A cam sensor harness extension is needed for the front-mounted Gen 4 cam sensor
• A small modification to the crank sensor connector is required; see the crank connector section of Link's installation manual
• Most Gen 4 engines need injector adapters to the USCar connector (Link 101-0287)
• Factory Gen 4 knock sensors need the LS Gen 4 Knock Adapter Loom (101-0306)
• A factory Gen 4 MAP sensor needs a Link MAP adapter loom (see 101-0308), or use a Link MAP sensor, which the harness supports directly

Need power management too? The fuse and relay box is a separate part, 101-0310.

Harness connectors

• Pedal connector (drive-by-wire pedal): 5V, sensor ground and two analog voltage inputs
• CAN2 connector for lambda modules, displays, keypads and other CAN devices
• MAP connector for Link MAP sensors (adapters available for factory LS MAP sensors)
• Knock connector for up to two knock sensors (adapters available for Gen 3 or Gen 4 factory sensors)
• Alternator connector for F Body alternators, with the exciter/lamp wire to terminal B
• Trans connector for a reverse switch, DI or other cabin signal
• IAC connector for a 4-wire stepper IAC; if no IAC is used, those channels can serve other functions such as a boost valve or nitrous
• TPS connector for cable-throttle sensors, which can be repurposed on drive-by-wire builds
• DBW connector for drive-by-wire throttle bodies (analog inputs, 5V, sensor ground), which can be repurposed on cable-throttle engines

Specifications

• Engine support: up to 8 cylinders or 4 rotors, sequential injection and direct spark
• Injection / ignition drives: 8 / 8
• Knock inputs: 2
• E-throttle: one throttle motor
• Communications: 2 CAN buses, LTW 6-pin USB tuning connection
• Data logging: 512MB, up to 100kHz total logging rate, 250 channels
• ECU enclosure: die-cast aluminum, 185 x 130 x 40 mm (7.28 x 5.12 x 1.57 in), 680 g
• ECU electrical: 6.5 to 24V operating range, 36V maximum input, 5.5A maximum continuous draw
• Software: PCLink, a free download from Link
• Harness: Link Terminated LS Engine Harness, AVSS wire; Link publishes an online harness instruction manual
• PCLink base maps: Gen 3 DBW and Gen 4 DBW base maps for G4X XtremeX/StormX