No matter how clean your LS swap is, it won’t run right without a proper tune. Fuel tables, injector data, timing, and torque management, all of it matters. But if your builder or tuner isn’t local, getting a professional calibration used to mean shipping ECUs, waiting on mail, or worse, relying on questionable tunes from forums. The EFILive AutoCal changes that.

This handheld tuner creates a direct link between you and your tuner, allowing them to send customized files based on your engine, transmission, and performance parts. With support for Gen III, Gen IV, and Gen V GM engine controllers, the AutoCal is tailor-made for LS- and LT-powered platforms. You can flash your calibration, log engine data, clear DTCs, and send logs back, all without needing a laptop in the car.

A Must-Have For Corvette Owners

If you’re modifying a C6 or C7 Corvette, you already know how sensitive the factory ECU can be. Change cam specs or add headers, and the drivability starts to suffer. Tuners using EFILive can send you updated calibrations via email. All you do is plug in the AutoCal, flash the file, and drive. It’s especially useful for street cars and track builds that need continued tweaks over time.

The AutoCal supports E38 and E92 ECUs, found in vehicles like the 2008–2013 Corvette and the LT1-powered C7. That same support carries over to LT swaps using late-model harnesses and controllers. From factory-style harnesses to standalones, the AutoCal can handle it.

Ideal For LS Swaps Of All Kinds

Junkyard 5.3-liter? Turbocharged 6.0? Custom standalone harness? The AutoCal works with all of it, as long as your tuner is EFILive-equipped. It’s been used on everything from budget S10 builds to autocross-prepped F-bodies. Want flex-fuel support? You can log ethanol content and fueling corrections with real-time data. Have a 4L80E behind a Gen III? Flash the transmission controller too.

For truck swaps, OBS conversions, and classic muscle cars with modern drivetrains, AutoCal gives you the flexibility to keep everything running smoothly without rewiring or reflashing at a dealership.

Tuning, Logging, And Diagnostic Power In One Device

The EFILive AutoCal isn’t just a flashing tool. It’s also a data logger and diagnostic device. You can capture engine vitals, monitor spark and AFR trends, and log boost or trans slip. It also reads and clears codes, allowing you to verify fixes or resolve issues without needing a laptop.

Most importantly, it’s tied to a specific tuner. That means you get personalized support with every revision. They can see exactly what your engine’s doing and send the calibration changes you need, whether you’re dialing in a cold start table or chasing down a drivability issue.

If you’re serious about your LS or LT build and want to stay connected to your tuner without hauling your car across the state, the AutoCal is one tool you shouldn’t go without.