DynamicEFI logs

• File type: CSV exports from DynamicEFI's EBL WhatsUp software, used with modified GM TBI (Throttle Body Injection) systems
• Supported devices: GM TBI-based engines logged through EBL WhatsUp
• Features: GM TBI channel abbreviations mapped to display units, Y/N flag and gear-letter parsing, sub-second timestamp interpolation

Supported File Format

EBL WhatsUp exports comma-delimited CSV with a trailing comma on every row, a RUNTIME column in HH:MM:SS format, and GM TBI-specific channel abbreviations:

RUNTIME,RPM,MPH,MAP,PSI,BRO,VAC,VE%,TPS,CTS,IAT,I/C,O2,G/S,SA,...,BLM,BPC,IAC,AFR,WB,...
00:00:00,   0,  0, 98,  0, 98,  0, 72,  0, 72, 69, 72, 451,  0,10, 0,...
00:01:53, 775,  0, 35,  0, 98, 63, 38,  0,100, 69, 99, 743, 17,25, 0,...

How to Export

EBL WhatsUp logs natively to a .dat raw serial stream; use the software's CSV export option to convert a logged session, then load the resulting .csv file directly into UltraLog.

Supported Data

• RPM, road speed (MPH), MAP/BRO (kPa), boost/vacuum (PSI/inHg)
• VE%, TPS, injector pulse width (base/actual/AE)
• Coolant and intake air temperature (°F), O2 sensor (mV), airflow (g/s)
• Spark advance, BLM/BPC fuel trims, IAC steps
• AFR/wideband, and Y/N flag or gear-letter channels (e.g. Park/Neutral)
• Any additional channel logged by EBL WhatsUp

RUNTIME Resolution and Timestamp Interpolation

EBL WhatsUp's RUNTIME column only has 1-second resolution, but the underlying data is sampled much faster. UltraLog distributes the multiple samples that share a RUNTIME value evenly across that second so the time axis stays smooth instead of stair-stepping. It also detects RUNTIME resets — the column wrapping back to 00:00:00 mid-session — and continues the time axis monotonically with a 1-second gap rather than jumping backwards.

Flag and Gear Values

GM TBI channel values include letter/flag codes alongside numbers: Y/N map to 1/0, P/N (Park/Neutral) maps to 0, and gear letters map to D = 4, R = -1, L = 1.