GTech Pro Expandable Gauge System Install - New-School Functionality

What's left to plug in? In order for the GTech to take advantage of its daisy-chain function, the remaining two black wires from the EGS wideband must be plugged in. Since we are only using one-sensor operation, we inserted the terminal jack in the plug with the "In" symbol. We took the other wire coming from the EGS ("Out" symbol) and plugged it into the serial bus port, completing the wiring.

Initial Setup
Our controller module must be calibrated for proper use. This is called sensor heater calibration, and it should be performed every time there is a new sensor connected to the controller. In our case it is a new setup, so we had to unscrew the O2 sensor from the bung. This exposes the O2 sensor to free air. Following the instructions, we performed these steps.1. Leave the sensor disconnected from the controller.
2. Turn on the ignition; power on the controller for 20 seconds.
3. Turn off the ignition; power off the controller for 20 seconds.
4. Connect the sensor to the controller (while sensor is exposed to air, not in the exhaust system).
5. Turn on the ignition; keep the controller power on for at least two minutes.

Next, we could really dig into the system and begin programming alarms and view parameters for the datalogger. We performed all these functions through the main menu by scrolling and giving a positive click with the scroll wheel. It couldn't have been any easier to use and set up.

We also told the GTech that a wideband sensor had been installed.

Once the GTech had been wired and calibrated, we began tucking away any extra wire length to give it a neat finish and double-checked all the connections.

We decided the top of the steering column would be the best spot for the tach. The tachometer is too large to fit under the dash, plus we already have our three-gauge pod installed there. Placed here, we can keep an eye on things and adjust various parameters on the fly much more easily--not to mention keeping our eyes on the road.

EGS Modes
G-Meter
The GTech Pro EGS also gives its users the ability to measure g-force values during acceleration, braking, and hard cornering. Once we plugged in our three-axis accelerometer module, we had the option of displaying those values and even recording them for playback. What's the benefit of the g-force function? We now have a solid indication of power gains or losses during tuning.

Datalog
Saving our data is another thing the Pro EGS does. Plus, the addition of the 2MB memory module leaves 24 folders for logging data one hour at a time. The great feature about this is that the user has the ability to go back and view what the car was doing--whether under hard acceleration or braking. Got a spike in the air/fuel ratio and didn't realize it? This very function will let you know when and where it's occurring, giving you the ability to fix it.

Adaptive Alarms
The adaptive alarm function can be used to keep an eye on the engine temps (OBD-II), battery voltage, air/fuel ratio, and more. Once your specific parameters are set, as soon as any one function creeps out of the safe zone, an alarm sounds and displays itself by flashing on the screen.