.: UNIVERSAL LT1 FUEL INJECTION HARNESS:.

92/93 & 94-96 LT1

New 94/95 LT1 (5.7 & 4.3 V8) 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.  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 is exactly  3 feet from the rear of the engine to the pcm, with an overall length of 6 feet (from PCM to the furthest sensor connection).  We have also supplied the correct rubber grommet to install the computer inside the car.  Our harnesses remove all the provisions for the unwanted items that modern FI engines come with, and street rodder's don't want.  For example  no VATS system, no Charcoal canister, no air pump, no EGR, ect... which allows for a much cleaner installation.  This harness is perfect for dropping any LT1 engine into any vehicle.   This harness will work with the 96 LT1 but will require the use of an 94/95 PCM (service number 16188051) .  PCM reprogramming is necessary for the correct transmission operation and antitheft removal, your PCM must have 16188051 as the service number found on the tag.  PCM reprogramming is  available from us.   A list of connections on the harness is below.  

If you would like to speak to us give us a call at 618-282-2852 Monday-Friday 8am-5pm CST

CONNECTIONS ON ENGINE SIDE

TPS       THROTTLE POSITION SENSOR
IAC        IDLE AIR CONTROL
IAT        INTAKE AIR TEMP
CTS       COOLENT TEMP SENSOR
MAP      MAINIFOLD ABSOLUTE PRESSURE
4L60E TRANSMISSON CONNECTIONS (DEPENDING ON TRANSMISSION TYPE ie manual or auto)
VSS SENSOR
DIST. CONNECTIONS (connects to the short harness from your distributor to the intake next to the injectors)
KNOCK SENSOR
BOTH FORWARD RUNNING O2 SENSORS
IGNITION COIL CONNECTIONS
INJECTORS 1,2,3,4,5,6,7,8

 CONNECTIONS ON PCM SIDE

RED, BLUE, CLEAR, & BLACK 32 PIN PCM CONNECTORS WITH RETAINERS
ALDL OBD1 DIAGNOSTIC CONNECTION
FUEL PUMP RELAY AND PUMP CONNECTION
SERVICE ENGINE LAMP CONNECTION
TCC BRAKE SWITCH CONNECTION
SPEED SIGNAL OUTPUT CONNECTION

 OPTIONAL ADD ONS 
 ( MUST TELL US AFTER PURCHASE)

COOLENT FAN CONTROL OUTPUTS
MASS AIR FLOW SENSOR
 

Purchase this item online via PAYPAL
or
We accept Visa/Master card, check/money order via Phone
618-282-2852

The 92/93 LT1 harness is also available but you must call as they
are made to order.  They normally ship within 5 days