VisiCan Parameter Abbreviations & Alert Thresholds Engine performance metrics, fluid temperatures, smooth-running balance & system values
1. Core Engine & Performance Parameters
KWx
Max Knock Ignition Retard Across All Cylinders: Displays the highest ignition timing retard value detected across all cylinders.
Text Colors: White (< 3.0°) | Orange (3.0° ≤ Retard < 6.0°) | Red (≥ 6.0°)
KW1-4
Cylinder #1–#4 Knock Ignition Retard: Individual cylinder ignition timing retard values.
Text Colors: White (< 3.0°) | Orange (3.0° ≤ KW < 6.0°) | Red (≥ 6.0°) | Bargraph Range: 0.0 to 10.0°
AFR
Air-Fuel Ratio: Real-time air-fuel ratio converted to standard 14.7:1 stoichiometric representation. Most factory ECUs actively stream dynamic AFR/O2 sensor data only after exhaust gas temperature (EGT) reaches 400°C–450°C; static values during cold startup before sensor warm-up are normal.
Text Colors: White (Target ± 0.4) | Orange (Target ± 0.5) | Red (Target ± 1.0)
HPF/FRP
High-Pressure Fuel Rail Pressure: Real-time fuel rail pressure (Bar).
Text Colors: White (Target ± 4 Bar) | Orange (Target ± 5 Bar) | Red (Target ± 10 Bar)
LPF
Low-Pressure In-Tank Fuel Pump Pressure & Duty Cycle:
Pressure (Bar): White (Target ± 0.5 Bar) | Orange (Target ± 1.0 Bar) | Red (Target ± 2.0 Bar) | Bargraph Range: 0.0 to 7.0 Bar
Duty Cycle (%): Bargraph Range: 0 to 100%
IGN
Ignition Timing Advance: Real-time ignition timing advance (positive values indicate advance).
Bargraph Range: -12.0° to +50.0°
INJ
Median Injection Timing: Average fuel injection duration (ms).
BST
Actual Manifold Boost Pressure: Live manifold pressure / boost (Bar).
Bargraph Range: -0.85 to +2.55 Bar
BTR
Target Manifold Boost Pressure: ECU requested manifold pressure (kPa).
Bargraph Range: -100 to +200 kPa
THR
Throttle Position Sensor Angle: Throttle opening percentage (%).
Bargraph Range: 0 to 100%
STF
Short-Term Fuel Trim: Real-time short-term fuel correction percentage (%).
Bargraph Range: -25% to +25%
TQ
Calculated Engine Torque: ECU calculated torque output (Nm).
Text Colors: White (< 250 Nm) | Orange (250 ≤ TQ < 300 Nm) | Red (≥ 300 Nm) | Bargraph Range: 0 to 550 Nm
HP
Calculated Engine Horsepower: Estimated real-time engine power output (HP).
Bargraph Range: 0 to 300 HP
SMK
Smoke Torque Limit: ECU maximum torque limit parameter based on smoke-limiter map thresholds (Nm).
Bargraph Range: 0 to 550 Nm
2. Temperatures & Fluid Levels
CTS
Engine Coolant Temperature: Engine coolant fluid temperature (°C).
Text Colors: Blue (< 75°C) | White (75°C ≤ CTS < 95°C) | Orange (95°C ≤ CTS < 108°C) | Red (≥ 108°C)
O.T
Engine Oil Temperature: Engine oil fluid temperature (°C).
Text Colors: Blue (< 75°C) | White (75°C ≤ OILT < 105°C) | Orange (105°C ≤ OILT < 115°C) | Red (≥ 115°C)
EGT
Exhaust Gas Temperature: Exhaust stream temperature (°C).
Text Colors: White (< 900°C) | Orange (900°C ≤ EGT < 950°C) | Red (≥ 950°C)
IAT
Intake Air Temperature: Manifold intake air temperature (°C).
Text Colors: Blue (< 20°C) | White (20°C ≤ IAT < 35°C) | Orange (35°C ≤ IAT < 50°C) | Red (≥ 50°C)
GBT
Gearbox / Transmission Oil Temperature: DSG / Automatic transmission fluid temperature (°C).
Text Colors: White (< 105°C) | Orange (105°C ≤ GBT < 115°C) | Red (≥ 115°C) | Bargraph Range: 0 to 125°C
O.P
Engine Oil Pressure: Engine oil pressure reading (kPa).
Bargraph Range: 0 to 99 kPa
O.L
Sump Oil Level: Engine oil pan fluid level depth (mm).
Text Colors: White (> 55 mm) | Orange (45 mm ≤ O.L ≤ 55 mm) | Red (< 45 mm) | Bargraph Range: 0 to 100 mm
TNK
Fuel Tank Level: Remaining fuel volume in tank (Liters).
Text Colors: White (> 10 L) | Orange (5 L ≤ TNK ≤ 10 L) | Red (< 5 L) | Bargraph Range: 0 to 65 L
3. Misfires, Smooth-Running Balance & Camshaft Timings
M1-M4
Misfire Counters: Real-time misfire counters for Cylinders #1–#4.
Text Colors: White (< 6) | Orange (6 ≤ M < 12) | Red (≥ 12) | Bargraph Range: 0 to 25 counts
D1-D4
Injector Quantity Deviation: Idle smooth-running cylinder balance corrections (%).
Bargraph Range: -25% to +25%
ICA/ICT
Intake Camshaft Position: ICA = Actual Intake Cam Angle (%) | ICT = Target Intake Cam Angle (%)
Bargraph Range: -25% to +25%
ECA/ECT
Exhaust Camshaft Position: ECA = Actual Exhaust Cam Angle (%) | ECT = Target Exhaust Cam Angle (%)
Bargraph Range: -25% to +25%
4. Speed, Performance Timers & System Info Raw Values
SPD
Vehicle Speed: Real-time vehicle speed (km/h).
Text Colors: White (≤ 180 km/h) | Orange (180 < SPD < 240 km/h) | Red (≥ 240 km/h) | Bargraph Range: 0 to 250 km/h
0-100+
Performance Acceleration Timers (0–100 / 60–160 / 100–200): Acceleration elapsed time counters (seconds).
Text Colors: White (< 10.0 s) | Orange (10.0 s ≤ Timer < 20.0 s) | Red (≥ 20.0 s) | Bargraph Range: 0.0 to 25.5 s
BTV
Battery Voltage: System voltage reading (e.g., 136 represents 13.6V).
AN0
Ambient Light Sensor Raw Value: Light sensor reading (0–255) for auto-dimming.
AN2
Unformatted Battery Voltage: Voltage without decimal point (e.g., 147 = 14.7V).
FQ0
Flex Fuel Frequency Output: Raw signal output in Hertz from the ethanol sensor (valid range: 50–150 Hz).
ET%
Ethanol Percentage: Real-time calculated ethanol content percentage in fuel line.
VisiCan Data Displays Page Structure & Mode Sequence Sequential layout of display modes and screen functions

VisiCan displays arrange monitoring views and system functions in a sequential numerical page order:

P.0 Page 0: OFF Mode (CAN Gateway Connected Models): Disables active CAN-Bus communication. Allows diagnostic scan tools (e.g., VCDS, ODIS, ISTA) to connect to the OBD port without interference.
P.1 Page 1: DTC Listing / Clearing Mode: Diagnostic fault code reading and clearing page for Engine Control Units (ECU).
P.2 Page 2: General Overview Mode (Main Gauge Screen): Multi-parameter summary grid displaying primary vehicle PIDs.
P.3 Page 3: Retard Detail Mode: Focused detailed view monitoring individual cylinder knock retard parameters (KW1–KW4 / KWx).
P.4 Page 4: Misfire Detail Mode: Focused detailed view monitoring individual cylinder misfire counters (M.1–M.4).
P.5 Page 5: Boost & Torque Detail Mode: Focused view dedicated to target/actual boost pressure and calculated engine torque.
P.6 Page 6: Temperature Detail Mode: Consolidated view dedicated to fluid and thermal sensors (Coolant, Oil, EGT, IAT, Transmission).
P.7+ Page 7+: Miscellaneous Custom View Modes: Platform-specific custom parameters and sensor pages.
LAST Final Page: Performance Acceleration Monitoring Mode: Acceleration timing meters for 0–100 km/h, 60–160 km/h, and 100–200 km/h.