Electronic Throttle Body Configuration Problem
Posted: Fri Dec 12, 2025 10:21 am
Hello,
I'm trying to configure ETB with microRusEFI connected in a setup on the table, outside of the car,
I followed the guide (https://github.com/rusefi/rusefi/wiki/Electronic-Throttle-Body-Configuration-Guide),
but stuck before the PID tuning step as the throttle doesn't move after activating Autotune button.
Sensors/TPS entry menu seems to be configured and working (both primary and secondary sensors measure properly, limits set, throttle moves first open then closed during Auto Calibrate ETB1).
Sensors/AcceleratorPedal setting seems to be configured and working - I use single channel potentiometer. Might it be a problem?
I get 'ETB Redundancy' yellow warning in Tuner Studio status bar at the bottom of its main page. Could this be related? I have two channels TPS, what redundancy is missing?
I can use 'Auto calibrate ETB1' from Advanced/Electronic Throttle Body entry and it operates throttle (it moves open then closed, no apparent issue here)
Then I burn it into microRusEFI ECU, power cycle it, and after reconnecting I can press the Start ETB PID autotune button, I get the message in the Tuner Studio that tuning is in progress, but nothing happens - throttle doesn't move a bit, no noise of working power stage, etc.
I tried to change the PID parameters manually, but the throttle doesn't seem to be in ETB mode, no signs of any attempt to follow the accelerator pedal signal.
When I go to the 'Advanced/ETB pedal target' menu item i can see the pointer tracking pedal position in the first column (700rpm)
Am I missing something? Is there a specific setting to activate the ETB?
Thank you for any comments.
I'm trying to configure ETB with microRusEFI connected in a setup on the table, outside of the car,
I followed the guide (https://github.com/rusefi/rusefi/wiki/Electronic-Throttle-Body-Configuration-Guide),
but stuck before the PID tuning step as the throttle doesn't move after activating Autotune button.
Sensors/TPS entry menu seems to be configured and working (both primary and secondary sensors measure properly, limits set, throttle moves first open then closed during Auto Calibrate ETB1).
Sensors/AcceleratorPedal setting seems to be configured and working - I use single channel potentiometer. Might it be a problem?
I get 'ETB Redundancy' yellow warning in Tuner Studio status bar at the bottom of its main page. Could this be related? I have two channels TPS, what redundancy is missing?
I can use 'Auto calibrate ETB1' from Advanced/Electronic Throttle Body entry and it operates throttle (it moves open then closed, no apparent issue here)
Then I burn it into microRusEFI ECU, power cycle it, and after reconnecting I can press the Start ETB PID autotune button, I get the message in the Tuner Studio that tuning is in progress, but nothing happens - throttle doesn't move a bit, no noise of working power stage, etc.
I tried to change the PID parameters manually, but the throttle doesn't seem to be in ETB mode, no signs of any attempt to follow the accelerator pedal signal.
When I go to the 'Advanced/ETB pedal target' menu item i can see the pointer tracking pedal position in the first column (700rpm)
Am I missing something? Is there a specific setting to activate the ETB?
Thank you for any comments.