.: UNIVERSAL LS1,LSX,VORTEC FUEL INJECTION HARNESS:.

99-02 LS1/LSX, 00-06 VORTEC
WITH OR WITHOUT DRIVE BY WIRE

New 99/02 LS1 stand alone SFI wiring harness.  Manufactured by Larry's Electric.  Our harnesses are all made with top of the line copper strand wire.  Each harness comes complete with the necessary relays and its own fused power source. Comes complete with obd 2 diagnostic connector, service engine light connections, and all the necessary connections for the engine sensors. It does not include the connections for the alternator, emissions related items, or the air condition.  This cuts down on the clutter and makes for a much cleaner installation of the LS1 into any vehicle.  Each harness comes complete with full technical support by phone or online.  With over 15 years experience, if you got a question we will answer it, and when you call you actually talk to someone who makes the harness, unlike other company's.  We use only GM color codes for easy trouble shooting.  Our harnesses come completely loomed with automotive grade split loom and all wires are coated with a flame retardant coating.  Each terminal is machine crimped and tug tested, splicing is also done by machine and followed up by hand soldering.  We use all GM grade connectors. (no cheep knock off's).  Installation consists of simply laying out the harness on the motor and plugging in the various devices.  Each connector is clearly labeled as to what it connects to.  We have provided plenty of room for placement of the computer, each harness has 3 feet from the rear of the engine to the PCM, with an overall length of 6 feet.   Our harnesses remove all the provisions for the unwanted items that modern fuel injected engines come with, and street rodder's don't want.  For example  no VATS system, no Charcoal canister, no air pump, no EGR, no rear O2 sensors, ect... which allows for a much cleaner installation.  This harness is perfect for dropping any LS1 engine into any vehicle. 

This harness is also available for the vortec V8 truck motors 4.8, 5.3, & 6.0 motors (2000 and newer) with or without drive by wire. PCM reprogramming is necessary for the correct transmission operation and antitheft removal.  PCM reprogramming is available from us.  Below is a list of connections that the harness has.

 CONNECTIONS ON ENGINE SIDE

TPS       THROTTLE POSITION SENSOR
IAC        IDLE AIR CONTROL
IAT        INTAKE AIR TEMP
CTS       COOLENT TEMP SENSOR
MAP      MAINIFOLD ABSOLUTE PRESSURE
CAM     CAM SHAFT SENSOR
CKP     CRANK SHAFT SENSOR
MAF     MASS AIR FLOW
4L60E TRANSMISSION CONNECTION (DEPENDING ON TRANSMISSION TYPE)
VSS SENSOR
KNOCK SENSORS
BOTH FORWARD RUNNING O2 SENSORS
BANK 1 AND 2 OF THE COIL PACK CONNECTORS
INJECTORS 1,2,3,4,5,6,7,8

 CONNECTIONS ON PCM SIDE

RED AND BLUE 80 PIN PCM CONNECTIONS WITH RETAINING BOLT
ALDL OBD2 DIAGNOSTIC CONNECTION
POWER RELAY
FUEL PUMP RELAY AND PUMP CONNECTION
SERVICE ENGINE LAMP CONNECTION
TCC BRAKE SWITCH CONNECTION
SPEED SIGNAL OUTPUT CONNECTION

 OPTIONAL OUTPUTS
 ( AFTER PURCHASE)

COOLENT FAN CONTROL OUTPUTS

ORDER ONLINE VIA PAYPAL
OR
BY PHONE WITH VISA/MASTER CARD OR CHECK/MONEY ORDER
618-282-2852

Note***  If you have a drive by wire motor you must obtain the TAC module and Pedal assembly.