99-07 Gen 3 LS/Vortec (24X) Engine Controller Kit — Drive By Cable w/ 4L60E-75/4L80E

99-07 Gen 3 LS/Vortec (24X) Engine Controller Kit — Drive By Cable w/ 4L60E-75/4L80E

Complete plug-and-play standalone engine and transmission wiring harness kit for 1999-2007 Gen III 24X LS/Vortec engine swaps, configured for Drive By Cable (DBC) throttle with 4L60E-75 or 4L80E automatic transmission control.

Application / Compatibility

• 1999-2007 Gen III 24X Chevrolet, GMC, Cadillac, and Hummer vehicles
• Drive By Cable (DBC) only
• Transmission: 4L60E/65E/70E or 4L80E automatic
• Compatible engines: LS1, LS2, LS6 (Corvette C5/C6, Camaro, Firebird, GTO, CTS-V) and Vortec 4.8L/5.3L/5.7L/6.0L (Silverado, Sierra, Suburban, Tahoe, Yukon, Yukon XL, Escalade, Avalanche)

What's Included

• Complete engine + transmission standalone wiring harness
• MAF sensor (ACC-1015)
• 2x upstream O2 sensors (ACC-1036)
• TCC brake switch kit (KIT-1002)
• Tuned PCM with mounting bracket
• Instruction manual

Build Your Kit

Choose your transmission, wire loom finish, and MAP sensor/intake manifold type from the options below. Pricing updates automatically based on your selections.

IMPORTANT: Info We Need Before This Ships

This harness is built and tuned to your specific combination. After you place your order, please provide the following in your order/cart notes (or reply to our confirmation email) so we can finalize your base tune before the harness ships:

• Injector type and flow rate (Multec, EV1, or EV6)
• Engine size (4.8 / 5.3 / 5.7 / 6.0 / 6.2 / 6.2 LS376-480 / 6.2 LS376-495 / 6.2 LS376-525 / 7.0)
• Engine year and the vehicle/model it's going into
• Tire size
• Rear gear ratio (2.73 through 4.56+) — if you're unsure, your order will not ship until this is confirmed; tuning requires this information.

PSI will follow up with you before your harness ships to confirm these specs and finalize your base tune.

Tuning Disclaimer

The installed tune is a base/startup tune. It will remove VATS, bypass VVT (if applicable), and disable DOD (if applicable). Any engine or transmission modifications will REQUIRE a custom tune.

Frequently Paired With

• Fuel filter/pressure regulator (e.g. Corvette Fuel Filter/Regulator, ACC-1028)
• O2 sensor extension harness
• Throttle cable
• Dakota Digital OBD2 interface
• Single Fan Relay Kit (KIT-1010)
• Fuel line kit — see our OBS Fuel System Swap collection

Also see our Gen 3 DBC add-on options: Fuse Block Mounting Bracket, A/C Idle-Up Recognition Wiring, Drive By Cable Cruise Control Wiring, 4WD Signal Wire, E85 Flex Fuel Signal Wire, and Engine-to-Chassis Ground Strap Kit.

Sourced through PSI Conversion.