Bar Gauge

Elite Software Programmer › ESP - Navigation › DisplaysUpdated Sep 2026

The bar gauge is one of the simplest displays in Haltech's ESP software: a rectangle that fills up as a value rises. It's quick to read at a glance, which makes it handy for the channels you only need a rough sense of.

What it's for

A bar gauge shows one ECU channel as a bar that fills as the value goes up. You read it by how full it is rather than by the exact number, so it suits channels where the trend matters more than the digits: throttle position, injector duty, fuel level or boost duty, for example.

To change which channel a bar shows, right-click on it and pick a new one.

When to use it, and what to check

  • Use bars for fast visual checks during tuning, like watching throttle travel or duty headroom. For exact values, a number display is better.
  • Pair a bar with a trace when you care about timing. A bar shows the value right now, but not how it got there.
  • Confirm you're looking at the channel you think you are. It's easy to right-click and pick the wrong one.

Need this diagram? Ask us and we'll send it over with advice for your build.

Other ESP display types include the dial gauge and trace display.