Aus430

Hi All,

Wondering if someone more knowledgable could confirm if my drive by wire throttle system this is operating correctly.

Below is a graph of the readout from the throttle position sensor when the pedal is being moved at a constant rate

When in combination, basically the first 1/2-2/3 pedal travel increases the TPS reading by about 20% of it's movement range and the last 1/2-1/3 of the pedal travel opens the throttle the remaining 80% of the way.

When the sensors are tested in isolation - (e tps off the throttle body operated manually and the pedal sensor voltage readouts in Techstream) they both individually read linearly. Ie increases in voltage proportionately relative to their physical position - so it looks like they are working correctly.

My question is -

Is this normal LS430 behaviour - ie programmed into the ECU to dull the throttle response between the pedal and throttle body

Or

is my throttle body/ throttle body motor misbehaving?

Cheers in advance

Aus430

Ok seems like new information. Would someone with an ELM be willing to check their drive by wire TPS graph?

The test takes less than a minute and simply requires moving the pedal at a constant rate while looking at the TPS readout graph.

Cheers