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Chevrolet Performance 19256514

LS 5.3L Engine Control Kit

Chevrolet Performance 19256514


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Chevrolet Performance 19256514 LS 5.3L Engine Control Kit $1,196.94
To order this item contact Customer Service at 1-800-345-4545.
LS 5.3L Engine Control Kit

Chevrolet Performance 19256514 Details

This controller is engineered for the following enginecodes, which feature 58X ignition systems:
LC9 (2005-2009)
LH8 (2008-2009)
LY5 (2007-2009)
LMF (2008-2009)
LMG (2007-2009)

Installation Notes:

Installing the ECM - The ECM is the brain of the controller. It is weather-resistantand can be mounted under the hood, but it should be placed to avoid extremeheat and away from potential splash. Chevrolet Performance does not recommendmounting it directly to the engine.
Accelerator pedal - Chevrolet Performance's controller kits are designed for usewith factory-type electronic throttles (no conventional throttle cable) that requirea matched accelerator pedal. The pedal contains an electronic sensor that conveysto the controller when and how much to open the throttle. The pedal shouldme mounted at least 2.5 inches to the right of the brake pedal and 2 inchesbelow it. There should be at least 0.75-inch clearance between the pedal and thetransmission tunnel/center console. The pedal has a wire harness that connectsto the controller, requiring it to be fed through the firewall - possibly requiring anew hole. Use a grommet on the hole to prevent chafing of the harness.
MAF - The mass airflow meter that comes with some Chevrolet Performancecontroller kits must be mounted in a 4-inch-diameter tube that has at least a6-inch-long straight section. The kit includes the bracket and mounting bossesonto which the meter is secured on the tube - the tube must be cut to allowthe meter to hang inside of it. The meter sensor must be mounted at the centerof the straight section, making sure that is at least 10 inches from the throttlebody. Orienting the MAF is essential for proper operation. The meter's sensorshould be mounted with the connector end pointed between horizontal and fullyupright.
Oxygen sensors - The oxygen sensors (one for each side of the exhaust) mustbe inserted in the exhaust stream ahead of the catalytic converters (if used).Holes are simply drilled into the exhaust tubing and the mounting bosses weldedto them. After that, the oxygen sensors simply screw onto the mounting bossesand are connected to the wire harness.


Manufacturer's Part Number:

Tailor-Made for Retro Installations

This calibrated controller kit from Chevrolet Performance enables the quicker and easier adaptation of GM's popular 5.3L V-8 for countless hot rod projects. It works with 2005- 2009 5.3L engines and is specially programmed for retrofit installations, with features that make getting the vehicle running easier than if a production 5.3L controller were used. The kit also includes hardware and components that don't typically come with used engines, such as the wiring harness, mass airflow meter and electronic throttle pedal - eliminating the need to source them separately.
Unlike the calibration for regular-production controllers, this specially calibrated 5.3L controller does not engage the cylinder-deactivating Active Fuel Management system that originally came with the engines. A number of other features associated with production-model systems are turned off with the controller, as well, eliminating the possibility of "trouble codes" being set. It is also programmed for easy use with automatic transmissions and includes a SES (service engine soon) LED indicator embedded in the fuse box.
This 5.3L controller system is a true stand-alone system for use in older vehicles, as all that's needed to get a vehicle running with it are power and ground sources, a 58-psi (400 kPa) fuel pump and an electric cooling fan.

The kit includes:

  • Two oxygen sensors
  • Two oxygen sensor mounting bosses (for installation in the exhaust system)
  • Mass airflow meter
  • Mass airflow meter mounting boss (for installation in the air intake system)
  • Throttle pedal assembly (for use with the electronically operated throttle)
  • Specific oil pressure sensor that is compatible with the harness
  • Complete wiring harness with fuse box and necessary cam sensor and MAP sensor jumpers
  • Programmed controller
  • Instruction sheet
  • 12-month/12,000-mile warranty

    This controller is engineered for the following engine codes, which feature 58X ignition systems:
    LC9 (2005-2009)
    LH8 (2008-2009)
    LY5 (2007-2009)
    LMF (2008-2009)
    LMG (2007-2009)

  • 19256514 - Chevrolet Performance LS 5.3L Engine Controller Kit is rated 4.0 out of 5 by 1.
    Rated 4 out of 5 by from gm harness Thanks for your great service. I had one small problem. GM did a nice job on the harness but they have the wrong oil pressure sensor with the kit. The sensor is for the 06-07 lc9 but it needs the 08-up sensor. Tried calling my local chevy dealer as I think this would be kind of a warranty deal but he was not very helpful. Jegs of course I called this morning and he said" no problem, we'll send out the right one on Monday ". Thanks for your great service.
    Date published: 2015-02-14
    • y_2017, m_12, d_15, h_24
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