FOR HANDS-ON CAR OWNERS
Keep maintenance, repairs, and upgrades together with the dates, mileage, receipts, and notes that explain them. Whether you do an occasional DIY job or most of your own work, remember what changed and what needs attention.
Pro is $59/year after 7 days free. Card required. Cancel before the trial ends to pay nothing.
Connect what you did with when, why, and what happened next. Start with your car and import its records; collect and analyze logs for deeper insights.
Keep the date, mileage, notes, and receipts for work on each car. Record an oil change you did yourself or a repair handled by a shop.
Track installed upgrades, planned work, parts, and spending alongside your service records, to build a comprehensive and intelligent history over time.
Keep each car’s records, photos, documents, and insurance information together. Add notes about the work and why it mattered.
Keep open issues and schedule services by time or mileage. Mileage estimates help you plan; update your odometer to keep everything synced.
Upload a JB4, MHD, or bootmod3 tuner logs; see Auto Tracker detect usable pulls, summarize supported channels, provide observations and deeper insights over time.
Every saved log becomes part of your engine's record. Comparable logs will build qualified trend views for metrics with known units and source meaning; historic data builds a clear picture over time.
Comprehensive analysis supports JB4, MHD, and bootmod3 CSVs. Logs now give you insights into how your tunes are performing, and engine health over time.
Engine performance briefing
Needs attentionBoost missed the effective target while wastegate duty was high in 2 of 2 usable pulls. The logs support a boost-control or pressurized-air-path limitation, not a failed-part diagnosis.
Do this next
Avoid increasing load. Pressure-test the charge tract and inspect couplers, clamps, diverter or bypass valves, and vacuum lines. If the tract is sealed, inspect wastegate or actuator control before retesting.
What can wait
Timing and intake temperature observations are context only and do not independently require action in the evidence reviewed.
Stop / retest gate
Stop: do not repeat a full-load pull until the charge tract and boost-control hardware have been inspected. Retest with the same logger/platform, map, fuel, and similar gear/load. Reassess when target tracking improves without the same excessive wastegate-duty pattern.
2 usable pulls reviewed · repeated in 2 of 2 · medium confidence
This is not an all-clear for overall engine condition. It reflects only the supported channels and usable pull evidence reviewed.
Grouped by pattern. Open evidence for per-pull values and limits.
warning · boost · medium confidence
Observed: Run 1: boost was 3 psi below the effective target at the 75th percentile of comparable samples while wastegate duty reached 90%. Run 2: boost was 3.6 psi below the effective target at the 75th percentile of comparable samples while wastegate duty reached 90%.
Interpretation: This pattern is consistent with a pressurized-air leak or boost-control limitation, but it does not identify the failed part.
Next step: Avoid increasing load. Pressure-test the charge tract and inspect couplers, clamps, diverter or bypass valves, and vacuum lines. If the tract is sealed, inspect wastegate or actuator control before retesting.
info · temps · high confidence
Observed: Run 1: intake temperature increased 32°F during the pull (peak 132°F).
Interpretation: The rise adds thermal context; this log does not prove heat soak as the cause of another signal.
info · timing · low confidence
Observed: Run 1: aggregate timing changed from 13° to 7° near 5,342 rpm (6° decrease).
Interpretation: The cause is not determined from aggregate timing alone; shift context is excluded, but load changes and ECU torque control remain alternatives.
This is a sample log. Upload your own and get the same analysis free. No account needed.
Sample log analysis, not a vehicle history report. Analyze a log free. No signup needed.
Pro keeps your garage and its records together, starting with a 7-day free trial. Supported-log analysis is also available free without an account.
$59/yr
7-day free trial, then $59/year. Your garage and connected car records.
$0
Analyze a JB4, MHD, or bootmod3 log for observations and insights, with a shareable link. No signup.
$25 one-time
An AI-assisted explanation of one shared analysis: observed flags and ordered checks to discuss with a tuner or mechanic.
Pro unlocks the whole app
Start with maintenance, a repair, or an upgrade. Add the details you want to remember.