Description
Engine harness for LS2/LS3 Vortec 58 tooth engine shown. Actual product may vary.
Our stock harnesses are 4 feet from the rear of engine passenger side.
Available options Transmission, Electric Fans, Air conditioning and Upgraded Braided loom.
Please call for custom ECM and/or Fuse Box Location,  extra Length.
Please call for harness package with programmed computer and pedal $1095 add transmission controller (4L60e/4L65e/4L70e/4L80e) for $200 more.
**Harness orders usually ship with in 15 to 20 business days after  ordering**
Built From Scratch Stand Alone Engine Harness
An engine management harness is pretty much what you will find from most wiring harness companies. Basically, it contains all of the necessary functions to make the engine start and run, while also supplying any necessary signals from the computer such as speedometer and tachometer.
Our engine management harness contains any fuses and relays that will be needed, and the required splicing on the consumer’s end of it is fairly basic. There are no main power feeds required for this harness, just a single switched ignition power will switch a relay in the harness that in turn, supplies 12V power to all of the required engine sensors and the ECU.
These harnesses are designed for the hot rod, or project car that will be using aftermarket or mechanical gauges. There is no output wire for oil pressure or temperature gauges since the aftermarket usually supplies sending units and wiring for these. The harness will have provisions to plug in to the stock oil pressure and coolant temperature sensors on the engine for use with OBD scanners/gauges.
All of our harnesses, whether it is a complete custom harness, or our engine management harness, come with an easily accessible DLC (Data Link Connector) that is usually long enough to be mounted in the passenger compartment. This allows for easy access to the ECU via a laptop or standard scan tool.
Harnesses come covered in standard OE split loom. Optional braided loom available for an extra charge.
The Fuses and Relays for our harnesses come in a compact OEM looking Fuse/Relay center where all of the components are in one central location. The fuse/relay center style is shown below. All of the fuses and relays are labeled on the underside of the covers just like a factory vehicle.
Not sure if you have VVT or DOD/AFM features?
2007 and up 58x engines have the option of Variable Valve timing to alter the camshaft timing while the engine is running. You can look for a few things to indicate if you have VVT. First, the plug on the front of the engine pointing downward on the driver’s side will have 5 wires going to it. A non-VVT engine will have 3 wires.
   
- Front timing cover with 5 wire connector for VVT, and bulge in the timing cover under the water pump are indications that the engine you are working with has VVT.
Engines with AFM/DOD have a 5 pin connector next to the oil pressure sensor in the valley cover under the intake. This should be noticeable from the back of the engine. Also, raised vanes should be visible on the valley cover instead of it just being flat and smooth as on non-DOD/AFM engines.
View from back of engine showing DOD/AFM connector.
This Harness fits V8 Engines out of these vehicles   ( 5.3, 6.0, 6.2 )
LSA/LS9 CARS – E67 ECU
- 2006-2015 Â Â Cadillac CTS V-Series
- 2009–2013 Chevrolet Corvette ZR1
- 2012–2015 Chevrolet Camaro ZL1
- 2013–2017 Holden Special Vehicles HSV GTS
5.3L/6.0L TRUCKS/SUV – E67 ECU
- 2007–2009 Chevrolet TrailBlazer
- 2008–2010 Hummer H3 Alpha
- 2009–2012 Chevrolet Colorado/GMC
- 2007–2008 GMC Envoy
- 2007–2009 Saab 9-7X
- 2007 Buick Rainier
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