Gen 5 (Direct Injection) 2014+ LT1 LT4 Engine Controller Kit

Overview

APPLICATION: Gen 5 (Direct Injection) 2014+ LT1, LT4, L83, L84, L86, L87 & L8T 5.3L / 6.2L / 6.6L engines.

This is PSI's complete, true stand-alone controller kit for a Gen V LT swap — engine and transmission harness, programmed ECM (and TCM for 8/10-speed), pedal, sensors, and MAF tube all in one kit, so you're not hunting down individual parts.

DBW Only — Important for OBS Installs

This kit has no cable-throttle option. Gen V direct-injection LT engines only ever came with electronic (drive-by-wire) throttle from the factory — there is no cable-throttle variant. For an OBS truck install, you'll use the included Corvette-style accelerator pedal (ACC-1007, already in the box) along with our separate 1973-1998 Chevy Truck Drive By Wire Throttle Pedal Bracket (BRK-7398, $65) to mount that pedal correctly in an OBS cab. The bracket is sold separately and is not a variant of this kit.

Parts Included

• Complete engine and transmission wiring harness
• Engine ECM (model varies by transmission choice — PSI's PCM-2001 / PCM-2003 / PCM-2004 / PCM-2006 line)
• TCM (8 and 10-speed only)
• Accelerator pedal (ACC-1007)
• (2) Oxygen sensors
• MAF sensor
• ECM mounting bracket
• 4" LS3/LT1 MAF tube/holder
• Instruction manual

Note: On 6-speed builds, don't forget to mail in your customer-supplied T43 TCM (located inside your 6L80E transmission) for programming.

Transmission Compatibility

All 8 + 10 speed TCM tuning REQUIRES your TUN (Transmission Unique Number). Without the TUN#, we cannot guarantee a compatible transmission, and warranties cannot be honored without this information.

• 6L80/90E: Must be 2013+ model year transmissions to work with a Gen 5 LT system.
• 8L80/90E: 2014-2018 Gen 1 model years currently compatible. Gen 2 8-speeds (2019+) are NOT compatible.
• 10L80/90E: All 2017-2018 Gen 1 10-speed transmissions are compatible. 2019-21 2WD Truck/SUV and all 2019+ GM Performance and Camaro are compatible. 2022+ Gen 2 10-speed transmissions with electronic transmission range select (ETRS) are NOT compatible — these ETRS transmissions will only have a "park" and "out of park" position on the external shift lever on the driver side of the transmission.

Fuel System

This setup uses a fuel pump relay to send 12V power directly to a standard constant-supply fuel pump, paired with a return-style regulator (regulated to 78 psi) rather than the factory PWM fuel pump control module (FPCM). See our OBS Fuel System Swap collection (KIT-1020 / KIT-1021) for compatible return-style fuel system pairings. If a PWM fuel pump / factory FPCM setup is required for your fuel tank, PSI also offers an add-on kit (KIT-1006) to accomplish this — contact us for details.

Connections For

• Fuse/Relay Box
• Fuel Pump Control
• Fan Controls
• Check Engine Light, OBD2
• Accelerator Pedal
• Throttle Body
• MAF Sensor
• MAP Sensor
• Engine Coolant Temp Sensor
• Alternator Control
• (2) Upstream Oxygen Sensors
• Crankshaft Position
• Camshaft Position
• Fuel Injectors
• Coil Packs
• Automatic or Manual Transmission Control
• Knock Sensors

Tuning Disclaimer

The installed tune is a base/startup tune, mirroring a factory OEM tune based on the options selected in your order. The tune will remove VATS (Vehicle Anti-Theft System), bypass VVT (if applicable), disable DOD (if applicable), and remove restrictions preventing operation of the engine when installed in a different vehicle.

Any engine or transmission modifications will REQUIRE a custom tune to ensure proper operation and prevent serious damage. PSI Conversion cannot be held responsible for issues related to operation or performance when the engine/transmission has been modified, or varies from the options selected when the tune was installed.