A guided starting point
Choose a GM vehicle profile. Learn channels, fuel trims, lambda, airflow, spark, idle, and transmission fundamentals in sequence.
GM TUNING EDUCATION / AT YOUR PACE
Understand the log.
Learn the next step.
Turn a screen full of numbers into a process you understand. Learn the fundamentals, practice in a simulated lab, and investigate your own CSV logs.
One-time purchaseNo subscriptionLearn by doing
2007 CHEVROLET
Avalanche Tuning Lab
Observe → investigate → change → verify
IdleTransitionSteady cruise
INVESTIGATE
Positive trims are greater at idle
Compare both banks and check for unmetered air before changing an airflow table.
18guided lessons
10 minpractice logs
Your CSVlog investigation
A PROCESS, NOT A GUESS
Start with the basics.
Build your understanding.
Follow the course from setup to validation, then return to the tools whenever you need practice.
A place to experiment
Read synthetic tables, generate ten-minute logs, make a practice change, and compare the result. Save your notes and export progress.
Make your log useful
Import a CSV, map the channels, and review possible issues with timestamps, likely causes, checks, and educational next steps.
Built around GM fundamentals.
Deepest practice coverage: naturally aspirated, port-injected gasoline V8 examples. Vehicle selection organizes your learning; it does not provide a factory calibration. Diesel, direct injection, boost, and unknown profiles have limited coverage.
FREE INTERACTIVE EXAMPLE
Read the pattern.
Then test your thinking.
Both banks add fuel at idle, then move closer to zero during cruise. What would you investigate first?
This is one synthetic teaching example. A pattern points to a test; it does not prove a diagnosis.
| Condition | Bank 1 trim* | Bank 2 trim* |
|---|---|---|
| Idle · 650 RPM | +14% | +13% |
| Cruise · 1,900 RPM | +3% | +2% |
YOUR TURN
Choose a first check.
The full lab explains what each channel means and what evidence to collect next.
ONE PAYMENT. YOUR LEARNING WORKSPACE.
Keep taking
the next step.
Lessons, simulation, CSV analysis, and useful calculators in one place.
Educational tools only. No personal tuning support, remote tuning, or tune-file service is included.
INTRODUCTORY ACCESS
$10USD / one time
14-day launch offer. Planned regular price: $20.
- All 18 guided lessons
- Table and log practice tools
- Local CSV log analysis
- Calculators and progress export
BEFORE YOU START
A few clear answers.
Will it tune my vehicle for me?
No. TuneSteps teaches a process and flags possible issues. It does not connect to a vehicle, write calibrations, generate a ready-to-flash tune, or replace mechanical diagnosis.
Can I use my HP Tuners log?
Export a CSV from your scanning software, then map its channels inside the lab. Availability and quality of the recorded channels determine what can be evaluated. Proprietary HPT tune files are not decoded.
Where does my CSV go?
The supplied analyzer processes your CSV in your browser. Progress and notes stay in that browser, separated by account. Export a backup to move progress to another device.
Does it include personal tuning support?
No. Access covers the educational software. Contact tunelabservice@gmail.com for account or billing questions.
Is this an official HP Tuners or GM product?
No. TuneSteps is independent educational software and is not affiliated with HP Tuners or General Motors. Manufacturer names identify the subject of the training.
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Open my lab →One-time educational access · No subscription or personal tuning support. Full refund requested within 7 days.