The plug-and-play CR-Fueler is a port injection controller that adds a secondary set of 8 (or more) port injectors to increase the overall fueling capacity. This allows for higher ethanol mixtures, more boost, and safer, more reliable horsepower.

As an added benefit to the port injection, the fuel being sprayed onto the intake port walls and valves, will clean the harmful deposits that will build up in Direct Injection only engines intake tract.

All of this at a much better value then larger Direct Injection High Pressure Fuel Pumps or injectors, with no idle or low speed driveablity issues that can be associated with those parts.

CR-Fueler 2.0 Kit:

Based around the HP ECU from Holley Performance Products. With this system, you gain the features of closed loop fueling with a single wide-band oxygen sensor. Also utilizes temperature correction, ethanol content correction, available on board boost control, nitrous or methanol injection control. HP has an available 4 inputs and 4 outputs for additional logging channels or functions.



  • Pre-programmed HP ECU for quick setup and tuning
  • 100% plug and play main harness
  • Injector harness with your choice of injector connectors
  • (1) manifold air temp sensor
  • (1) 100 psi fuel pressure sensor
  • (1) NTK wideband sensor
  • Installation guide and full product/tuning support


The CR-Fueler can be configured with many options, with coverage of ALL GM V8 direct injection equipped vehicles from 2014-2019. Including L83, L86, LT1,LT4 and LT5 engines.


  • Available upgrades include.
  • 3.5" touchscreen for datalogging, monitoring or tune changes. 
  • Spark control with the stock LT coils.
  • Traction control using the stock ABS wheel speed sensor inputs. Does not affect factory ABS!
  • Torque Converter Lockup control for automatic transmission vehicles.
  • Boost control for turbo, Procharger or roots blowers.
  • 5 bar map sensor
  • Methanol injection control
  • Nitrous control


All CR-Fueler Kits INCLUDE:

  • Main plug-and-play harness -- intercepts the required signals from the vehicles existing sensors for a clean (100% NO cutting or splicing) connection; simply plug-and-play
  • Built in fuse and relay block
  • Custom tailored port injector harness with either EV1 or EV6 fuel injector connectors.
  • Full flex fuel capabilities 
  • Secondary fuel pump triggering (no Hobbs switches needed)


*ALL CR-Fueler kits are in-house manufactured with the highest quality wire harnesses, are made in the USA, and produced using all genuine OEM connectors, terminals, and seals. Only factory crimping and wire processing tooling is used to ensure the ultimate in durability and performance.


CUSTOM CR-Fueler Configuration Kit are available upon request.



     © 2020 Crawford Racing LLC

             6320 Angus Drive

                    Suite H-I

            Raleigh, NC 27617

               (919) 896-6498