Engine Monitors for Honda
Bold= Default Log List
AP3-HON-001
AFR Actual - Wideband front oxygen sensor reading converted from Lambda to AFR
AFR Commanded (Final) - The desired lambda before input from closed loop adjustments.
Accelerator Pedal Position - Accelerator pedal position (this is direct pedal input before translations)
Air Charge - Engine load actual after all compensations.
Air Charge Desired - Desired engine load from torque request calculations
Air Mass Flow - The calculated airflow through the engine
Air Mass Flow Desired - Desired airflow through the engine
Barometric Pressure - Measured barometric pressure
Battery Voltage - Hopefully self-explanatory
Boost Pressure - Manifold Absolute Pressure minus current barometric pressure
Brake Pressure - Pressure applied to brake pedal
Catalyst Temperature (Modeled) - What temperature the computer thinks the catalyst is. Used for component protection functions
Clutch Pedal Position - Travel of the clutch pedal from 0% (fully released) to 100% (fully depressed)
Clutch Pedal State – Travel of the clutch pedal broken into different modes, 0 (position 0-80%) or 1 (80-100%) for FK8 and 0 (0-25%), 1 (80-100%), and 2 (25-80%) for FL5/DE5.
ETC Angle Actual - Actual angle of the throttle body, represented in a percent from 0-100%
Engine Coolant Temperature (Sensor 1) - Pre-radiator engine coolant temperature
Engine Coolant Temperature (Sensor 2) - Post-radiator engine coolant temperature
Engine Speed - Engine RPM
Exhaust Gas Mass Flow Upstream Turbo - Combined air and fuel exhaust gas mass upstream of the turbocharger; used in calculations for desired mass flow fraction between turbine and wastegate.
Exhaust Manifold Pressure – Absolute pressure in the exhaust manifold before the turbocharger.
FFS Rev Limit Current flat foot shift rev limit.
FFS State - Current flat foot state. Monitor s a sum of any applicable functions below How to Read Compound Monitors
1 | FFS Disabled |
2 | Vehicle Speed Ready |
4 | Accel. Pedal Ready |
8 | Clutch Pedal Ready |
16 | Not Used |
32 | Not Used |
64 | Real Time Override |
128 | FFS Active |
FRP Actual – Measured fuel pressure in the fuel rail, units in PSI
FRP Desired – Target fuel pressure in the fuel rail, units in PSI
Fuel Status – Mode of the fuel system
Gear – Current gear
HPFP Spill Valve Duty Cycle (Feed Forward) – Target spill valve duty cycle, prior to error corrections
HPFP Spill Valve Duty Cycle (Final) – Final spill valve duty cycle, including all error corrections
Ignition Timing Cyl1 – Final ignition timing advance for Cylinder 1
Ignition Timing Cyl2 – Final ignition timing advance for Cylinder 2
Ignition Timing Cyl3 – Final ignition timing advance for Cylinder 3
Ignition Timing Cyl4 – Final ignition timing advance for Cylinder 4
Injection Time – Injector pulsewidth, in ms
Intake Air Temperature – Pre-turbo intake air temperature
Knock Level (Reference) – Intermediate calculations for the estimation of knock count and intensity
Knock Ratio (Int/Ref) – Estimation of knock intensity, used in lookup for knock correction tables
Knock Ratio (Int/Ref) (2) – Estimation of knock intensity, used in lookup for knock correction tables
Knock Retard Cyl1 – Timing retard applied to Cylinder 1 due to knock
Knock Retard Cyl2 – Timing retard applied to Cylinder 2 due to knock
Knock Retard Cyl3 – Timing retard applied to Cylinder 3 due to knock
Knock Retard Cyl4 – Timing retard applied to Cylinder 4 due to knock
LC Active Time Launch control active time maximum from table data. The Launch Control Timeout defines the maximum time Launch Control can be active.
LC Activation Delay Time Current launch control activation delay from table data.
LC Engine Load Target Load target while in launch control from Load Target table.
LC ETC Target ETC target while in launch control.
LC Rev Limit Engine RPM target while in launch control from Rev Limit (LC) table.
LC State Current launch control state. Monitor is a sum of any applicable options below How to Read Compound Monitors
1 | Launch Disabled |
2 | Oil Temperature Disable |
4 | Coolant Temperature Disable |
8 | EGT Disable |
16 | Launch Timeout Disable |
32 | Transmission Oil Temperature (MK7 only) |
64 | Steering Wheel Angle Disable |
128 | Not Used |
256 | Clutch/Brake Ready |
512 | Accel. Pedal Ready |
1024 | Vehicle Speed Ready |
2048 | Launch Delay Complete |
4096 | Burnout Mode Level 1 |
8192 | Burnout Mode Level 2Â |
16384 | Not Used |
32768 | Launch Active |
Lateral Acceleration – Side-to-side G-force of vehicle
Long Term Fuel Trim  – Learned fuel trim
Longitudinal Acceleration – Front-to-back G-force of vehicle
MAF (Mass Air Flow sensor) Voltage – Voltage signal from MAF sensor
MAP (Manifold Absolute Pressure) – Manifold Absolute Pressure
Manifold Air Temperature – Air temperature in intake manifold
Oil Pressure – Oil Pressure
Pressure Upstream Throttle (PUT) Actual – Pre-throttle body actual absolute pressure
Pressure Upstream Throttle (PUT) Desired  – Target pre-throttle body absolute pressure
Short Term Fuel Trim – Changes to fueling based on current need
Steering Angle – Current angle of steering wheel; 0-degrees indicates wheel is straight
Target Boost Pressure – Target MAP minus current barometric pressure
Torque Percent Estimated – Estimated torque in relative form after all calculated losses and lambda/spark efficiency (0-100%, scaled against torque maximum).
Torque Percent Optimum – Estimated torque in relative form before all calculated losses and lambda/spark efficiency (0-100%, scaled against torque maximum).
Torque Percent Requested – Requested torque in relative form (0-100%, scaled against torque maximum).
Torque Spark Efficiency – Modeled efficiency of current spark angle vs. modeled MBT at current RPM/load.
Turbo Compressor Efficiency – Modeled compressor efficiency at estimated pressure ratio and airflow mass.
Turbo Compressor Pressure Ratio – Modeled actual pressure ratio across the compressor (Outlet/Inlet).
Turbo Compressor Pressure Ratio (Desired Outlet/Modeled Inlet) – Desired pressure ratio across the compressor (Outlet/Inlet).
Turbo PID I-Term – Integral component of the boost error control system
Turbo PID PD-Term – Sum of proportional and derivative components of the boost error control system
Turbo Power Ratio (Des. Comp./Avail. Turb.) – Modeled ratio of desired compressor power vs. available turbine power; used as y-axis for Desired Position Boost Pressure Actuator table.
Turbo Pre-Turbine Reduced Mass Flow – Representation of desired exhaust mass flow through turbine vs. wastegate; used as x-axis for Desired Position Boost Pressure Actuator table.
Turbo Turbine Mass Flow Usage Rate – Representation of desired exhaust mass flow through turbine vs. wastegate.
VCT-E Position Actual – Exhaust cam phaser actual position
VCT-E Position Desired – Exhaust cam phaser target position
VCT-I Position Actual – Intake cam phaser actual position
VCT-I Position Desired – Intake cam phaser target position
VTEC Lift State – State of VTEC lift on exhaust cam; 0 = off, 1 = on
Vehicle Speed – Vehicle speed, averaged across all wheels
Wastegate Position Actual – Actual position of the wastegate actuator; 0 = totally closed, 1 = totally open
Wastegate Position Desired – Desired position of the wastegate actuator; 0 = totally closed, 1 = totally open
Wheel Speed (LF) – Wheel speed, left front
Wheel Speed (LR) – Wheel speed, left rear
Wheel Speed (RF) – Wheel speed, right front
Wheel Speed (RR) – Wheel speed, right rear
Yaw – Yaw of vehicle (rotation of vehicle compared to direction of movement/inertia)
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