Painless Performance EFI Harness For Throttle By Wire GM Gen III 4.8L/5.3L/6.0L Engine

Painless Performance:
60221
MSRP $1,143.31
$699.99
You save 39%

Painless Performance EFI Harness for 4.8L, 5.3L and 6.0L GM Gen III Engines with a Throttle by Wire Set-Up.

This Painless Performance (60221) EFI Harness includes 10 fuses and a 10-circuit weatherproof fuse block and mounting bracket, plus GM color-coded wires with labels to make installation even easier! You’ll get 4 feet of harness -- the standard distance between engine and ECM allows 4 feet from back of intake manifold to where the fuse block and ECM mount together, which is perfect for anyone who plans to mount components under the dash or in the glove box. This aftermarket EFI harness supports flex fuel and non-flex fuel engines and is a great way to replace broken or corroded wiring to get a better, more organized and modern wiring set-up. 

Features and Benefits:
- Ten (10) Fuses with Two (2) Ignition, One (1) Cooling Fan and One (1) Fuel Pump Relay
- Includes Ten (10) Circuit Weatherproof Fuse Block and Mounting Bracket, GM Color-Coded Wires with Labels for Easy Installation
- 4 Feet between Engine and ECM: 
- Mini Blade Fuse Type
- Color Code Based on 1999-2006 C/K Truck/SUV
- Supports Engine Codes LR4, LM7, LM4, LQ4 and LQ9
- Supports Flex Fuel and Non-Flex Fuel Engines
- Replaces Broken or Corroded Wiring
- Restores Quality, Organized Modern Wiring Set-Up

Vehicle Fitment:
- 1960-1987 C10
- 1948-1979 F100
- 1966-1977 Bronco
- 1965-2010 Mustang
- 4.8L, 5.3L and 6.0L Engines with Throttle by Wire Set-Up: Found in Factory 2003-2006 Vortec Trucks
- Works with 4L60E, 4L65E, 4L70E, 4L80E, 4L85E or Manual Transmission 

*1999-2002 engines will require installing a 2003-2006 TBW throttle body.
*Flex fuel engines will require an inline fuel composition sensor in order to run E85 fuel.

Fuse Block Protects the Following Circuits:
- Brake and Cruise Switch
- Dual 40-Amp Ignition Relays
- ECM (IGN)
- ECM B+
- Fuel Injectors
- Fuel Pump
- Heated O2 Sensors
- Ignition Coils
- Mass Airflow and Fuel Compensation Sensor
- Throttle Actuator Control Module
- Transmission and Park Neutral Position Switch
- 20 Amp Cooling Fan Relay
- 20 Amp Fuel Pump Relay 

Includes Connections for the Following Components:
- A/C Request
- Accelerator Pedal Position Sensor
- Alternator
- Brake Switch
- Cam Position Sensor
- Cooling Fans
- Crank Position Sensor
- Cruise Control
- Data Link Connector
- Driver / Pass Front O2 Sensors
- ECM
- Engine Coolant Temperature
- Fuel Compensation Sensor
- Fuel Pump
- Fuel Pump Test
- Grounds
- Ignition Coils
- Ignition Switch Signal
- Injectors: Gas and Flex Fuel Sub-Harness
- Input Speed Sensor
- Knock Sensors
- Malfunction Indicator Lamp
- MAP Sensor
- Mass Airflow / Intake Air Temperature Sensor
- Output Speed Sensor
- Park / Neutral Switch
- Reverse Lights
- Starter
- Starter Relay Activation
- Tachometer
- Throttle Actuator Control Module
- Throttle Actuator Control Module to Accelerator Pedal Pigtail
- Throttle Body
- Transmission
- VSS Output for Speedometer
- Knock Sensor Pigtail 

California Residents: Proposition 65 Warning

Vehicle Fitment

This product will fit the following Bronco years:

This product will fit the following C10 years:

This product will fit the following F-100 years:

  • 1948,
  • 1949,
  • 1950,
  • 1951,
  • 1952,
  • 1953,
  • 1954,
  • 1955,
  • 1956,
  • 1957,
  • 1958,
  • 1959,
  • 1960,
  • 1961,
  • 1962,
  • 1963,
  • 1964,
  • 1965,
  • 1966,
  • 1967,
  • 1968,
  • 1969,
  • 1970,
  • 1971,
  • 1972,
  • 1973,
  • 1974,
  • 1975,
  • 1976,
  • 1977,
  • 1978,
  • 1979,

This product will fit the following Mustang years:

Only registered users can ask/answer questions. Please sign in or create an account.
Write Your Own Review
Only registered users can write reviews. Please sign in or create an account.
Complete Your Package
Add to Cart