Holley (software 10.76 or newer)

TCU configuration #

After activate holley stream in TCU, then TCU stream always 16 parameters to Holley. This 16 parameters is not configurable in TCU:

ParameterCAN IDCAN channelFrequencyUNIT
TCU G. Oil Temp1824Input 150 HzCelsius
TCU Gear1824Input 250 HzGear
TCU TQ Reduction1824Input 350 Hz%
TCU Program1824Input 450 HzProgram
TCU Vehicle Speed1824Input 550 HzKM/h
TCU Blips1824Input 650 HzFlag
TCU Clutch Slip1824Input 750 Hz%
TCU Convert Slip1824Input 850 Hz%
TCU Engine TQ1825Input 150 HzNM
TCU Input RPM1825Input 250 HzRPM
TCU Lockup Pres.1825Input 350 Hz%
TCU Error Code1825Input 450 Hznumber
TCU Neutral Flag1825Input 550 HzFlag
TCU Parking Flag1825Input 650 HzFlag
TCU Brake Flag1825Input 750 HzFlag
TCU T-Brake Flag1825Input 850 HzFlag

Holley configuration: #

Configuration receiving can-bus data from TCU:

1.import first I/O settings to Holley

2. Configuration of inputs:

2.1 set name for parameters:

2.2 enable all pamameters:

3. Configuration of can inputs 1824 1-8:

3.1 TCU G. Oil Temp

3.2 TCU Gear

3.3 TCU TQ Reduction

3.4 TCU Program

3.5 TCU Vehicle Speed

3.6TCU Blips

3.7 TCU Clutch Slip

3.8 TCU Convert Slip

4.Configuration of can inputs 1825 1-8:

4.1 TCU Engine TQ

4.2 TCU Input RPM

4.3 TCU Lockup Pres.

4.4 TCU Error Code

4.5 TCU Neutral Flag

4.6 TCU Parking Flag

4.7 TCU Brake Flag

4.8 TCU T-Brake Flag

5. configuration of TQ reduction:

5.1 import “advanced”:

5.2 Make and activate ignition correction map:

Table Type: Timing Offset

X Axis: TQ Reduction TCU

Y Axis: MAP

this is exaple ignition correction table.

6. Send settings to holley and recycle ignition.

Updated on July 7, 2026