DescriptionSuper simple chassis connections – no OEM fuseboxes needed. Ignition, Fuel Pump & Gauges – a handful of labeled wires for you to connect.Fully finished harness – all loom secured and engine / transmission connectors attached.Key Features Include:Integrated Coil Pack Harnesses – both banks now provided for no extra chargeStandalone 5 Circuit Bussmann Fuse/Relay Block provided – no connections to OEM fuse boxes neededCircuits provided: Ignition, Fuel Pump, Fan1, Fan2 & A/C relay (if not using A/C can be used for aux function like oil or diff cooler fan etc)Proper gauge wiring support for Dual 30 Amp PCM-controlled electric cooling fansThermaShield 1,2200F Aluminum / Fiberglass Connector protection provided on knock sensors – no more melted knock sensor connectorsSUPPORTED ENGINES: GM 5.3L LH6/LY5/LMG/LH8 ENGINES USING DRIVE BY WIRE / ELECTRONIC THROTTLE2005-2009 Chevrolet Trailblazer including EXT through 2006 (LH6 Vortec)2005-2009 GMC Envoy Denali(LH6 Vortec)2005-2006 GMC Envoy XL (LH6 Vortec)2005 GMC Envoy XUV(LH6 Vortec)2005-2007 Buick Rainier (LH6 Vortec)2005-2009 Saab 9-7X (LH6 Vortec)2005-2007 Isuzu Ascender (LH6 Vortec)2007 Chevrolet Silverado 1500 (LH6 Vortec)2007-2009 GMC Sierra 1500 (LH6 Vortec)2007-2014 Chevrolet Avalanche (LY5 Vortec)2007–2013 Chevrolet Silverado 1500 (LY5 Vortec)2007–2014 Chevrolet Suburban 1/2 ton (LY5 Vortec)2007–2014 Chevrolet Tahoe (LY5 Vortec)2007–2013 GMC Sierra 1500 (LY5 Vortec)>2007–2014 GMC Yukon (LY5 Vortec)2007–2014 GMC Yukon XL 1/2 ton (LY5 Vortec)2007–2013 Chevrolet Avalanche (LMG Vortec)2007–2013 Chevrolet Silverado 1500 (LMG Vortec)2007–2014 Chevrolet Suburban 1/2 ton (LMG Vortec)2007–2014 Chevrolet Tahoe (LMG Vortec)2007–2013 GMC Sierra 1500 (LMG Vortec)2007–2014 GMC Yukon (LMG Vortec)2007–2014 GMC Yukon XL 1/2 ton (LMG Vortec)2008–2009 Hummer H3 (LH8 Vortec)2009 Chevrolet Colorado (LH8 Vortec)2009 GMC Canyon (LH8 Vortec)PRO-SERIES HARNESS TECHNICAL SPECSPlug and Play – simple and efficientNO CORE HARNESS or additional wiring requiredOEM wire colors used, where applicableAll sensor signal connection use EM shielded wiresSuper-High Temp Fireproof fiberglass loom used on knock sensor, O2 sensor & transmission branches located in hot areas. (-40°C/-40°F to 450°C/ 845°F operating temperature)Point-to-Point continuity tested on every wireConstructed using exact OEM connectors and sealsMade with high temp TXL wire with adhesive shrink tubing (-40°C/-40°F to 125°C/ 257°F operating temperature)Wrapped in lightweight nylon loom (-94°C/-137°F to 125°C/ 257°F operating temperature)Includes a charge harness and improved groundsFully tested after production for an easy plug-and-play installationPRO-SERIES HARNESS INCLUDESHarness fully redesigned with optimized & improved power and ground routingSupplied with 5 Fused Relays in a weather-tight sealed Bussmann BoxRelays provided: Ignition, Fuel Pump, Fan1, Fan2 & A/C relay (if not using A/C can be used for aux function like oil/diff cooler fan etc)Main Engine and Transmission one-piece tucked harnessAlternator charge cable built into the main harnessKnock sensor sub-harness connectorMAFS connectorMAP sensor connectorIntake Air Temp connectorTPS connector8x Injector connectorsIntegrated Bank 1 and Bank 2 Coil Harnesses in the OEM location – no sub-harnesses requiredOil Pressure gauge connectorProper gauge wiring support for Dual 30 Amp PCM-controlled electric cooling fansCam sensor connectorCrank sensor connectorBank 1 and Bank 2 FRONT Oxygen sensor connectors (High Temp shielding)1 x Ground ring terminalIdle air connectorECT sensor connector and cluster coolant temp switch connectorReverse lights sensor connectorSpeed sensor connectorReverse Lockout connectorSkip Shift connectorAlternator connectorStarter signal/start connectorA/C Wiring is available as an option. Please note that adding A/C to an LS2 is not easy and will require custom lines and sensor installation. Wiring Specialties will provide a wiring sub-harness needed for operating the A/C system ONLYOBD2 Communication connectorPrintable install instructions with picturesTurn Key ENGINE START GuaranteeTech support for our customers 7 days a week FAQ & OTHER DETAILSAlternator Charge Cable – This item ties the starter/battery directly to the Alternator output, which allows the improved power routing on our harness to eliminate the wire running from the alternator to the fusebox and/or battery while still charging the battery normally.Grounding Kit – Our Kit ties a number if engine components to the body of the car and ensures that you will not have issues resulting from poor grounds. The Grounding Kit utilizes Ultra High temp fiberglass sleeving to allow installation under or around exhaust components. Very flexible mounting options allow you to connect the block, head, battery tray, alternator case and chassis to completely eliminate all grounding issues.Speedo Signal Conditioning – The Dakota Digital SGI-5 unit for Speed can ‘condition’ the signal to compensate for cross-platform swaps. If the Option exists to ADD the unit on the harness page for your swap, then you need it for proper speedo operation. Please note that some transmissions (350z, BMW ZF and S15 Silvia for example) do not have a speed sensor and will require a non-harness based solution like a GPS speedo.Plug-n-Play vs Universal – Plug-n-Play harnesses connect to your car’s underhood fuse box for power and to connectors under the dash for gauges etc. Universal harnesses do not need an underhood fusebox to connect to and the wiring for gauges and warning lights is provided as a ‘flying lead’ which are bare wires labeled with their function.Right Hand Drive (RHD) Conversions – If you used ALL the stock LHD chassis connectors for your RHD swap, order the LHD version of the harness. If you used ALL the clip/swap RHD chassis connectors, order the RHD version of the harness. If you used a combination of LHD and RHD chassis connectors, please contact us as our harnesses will need modification.Don’t See It? – If you have injectors, throttle body, coilpacks or any other item that you do not see on the Options offerings, please contact us. Chances are we can do it!Battery Cables / Battery Relocation – The battery must be connected to the starter, so you need a battery cable from the positive battery terminal to the starter main power lug. Typically this positive battery cable also powers up the main under hood fusebox, which runs many of the non-engine items on your car like interior lights, dash power and headlights/taillights. Please make sure you have prepared for this as each install is different.
