PCM Hammer LS Swap Tuning & First Start Guide (PDF)

Wanna learn to tune your own LS swap and get it fired up and running? This Nautty Kustoms PDF walks you through PCM Hammer setup, backing up your ECU, editing with TunerPro, VATS settings, first-start checks, and basic tuning with datalogs.

What’s inside

• Step-by-step setup, ECU backup, checksum checks and flashing
• Matching your XDF definition to your ECU operating system
• An OS-specific VATS example and first-start troubleshooting
• Logging, wideband setup, injector data and idle adjustment
• MAF/VE airflow, fuel validation, spark review and revision worksheets

Built for your LS swap

For supported P01/P59 Gen III 4.8L, 5.3L and 6.0L swaps. PCM Hammer flashes the file; TunerPro edits the calibration. Settings must match your ECU operating system and engine combination.

What you receive

One 14-page PDF with Nautty Kustoms branding, checklists and tuning worksheets. Digital guide only; no physical item or tune file included. Compatible interface and software required. High-load calibration requires appropriate equipment and measured validation; this guide does not guarantee startup or universal fitment.

Plan the rest of your build

Start with the LS Swap Buying Guide: parts, years and models, then use the LS Swap Installation & First Start Guide for mechanical and installation checks.

Important tuning risk and liability notice

This PDF is educational information, not a vehicle-specific tune or a guarantee of results. ECU flashing and incorrect tuning can cause a no-start, ECU failure, engine or transmission damage, and other property damage. You are responsible for verifying compatibility, calibration settings, equipment and procedures for your vehicle before making changes. Obtain qualified help when needed.

By purchasing and using this guide, you acknowledge these risks. To the fullest extent permitted by applicable law, Nautty Kustoms and the guide’s author disclaim liability for damage or loss arising from your use or misuse of the guide, incorrect tuning, incompatible files, or flashing errors. Nothing in this notice excludes liability or consumer rights that cannot legally be excluded.