From the logger
CSV export with one or more header rows – short name, long name, unit – or an MSL file from TunerStudio. The page finds the time column and translates known column names, for example “Ladedruck” to boost pressure.
Free · no upload
View log file
View a CSV log from a logger or OBD app online: drag the file here and the graphs appear – engine speed, boost pressure, lambda, temperatures, whatever the recording contains. The file stays on your device.
01
Open a file
The file stays with you
The page only reads the file in your browser. Nothing is uploaded; when you close the page, the file is gone.
Shows, does not interpret
You see graphs, figures and the channel names – just as the logger recorded them. What the values mean is not stated here, but in the findings report.
02
Graphs
Channels
Arrange the panels yourself
ExpertEach channel gets a panel. Channels in the same panel are overlaid, each with its own scale; the axis shows the first channel, and the figures are in the table.
Dragging zooms into an area; a double-click shows everything again. On a phone, one finger moves the cursor and two fingers zoom. A click in a panel enlarges it; a second click restores it. With the keyboard (select the chart with Tab): arrow keys move the cursor, Shift+arrow in large steps, + and − zoom, Home shows everything, and Enter switches through the panels.
| Channel | Recognised as | Unit | at cursor | Minimum | Maximum |
|---|
Values calculated by the ECU
The figures are the values calculated by the ECU, just as the logger recorded them. The page does not change them, add to them or assess them. “Recognised as” only translates the column name.
The report explains what the graphs mean
Log analysis only puts the recording into context – with a report and report number, €90 incl. 19% VAT. What it shows
03
Which files the page reads
From the OBD app
CSV with a timestamp and column headings, as written by the common apps. Fields without a value appear as a gap in the graph.
From Excel or diagnostic software
Save as CSV or text. Semicolon, comma or tab, decimal comma or decimal point – both work. The page does not read Excel files (.xlsx) or the programs’ own formats (.hpl, .mlg, .ld, .brc); export them as CSV first.
Up to eight channels at the same time. Channels with the same unit share a panel; each panel has its own scale.
No log file yet?
How to record
Which device, which values, which pull at full load: step by step on the “Recording log data” page.
Recording log data
Questions to info@tuningcheck.de