Air fuel ratio gauge install civic

Make sure you are rotating the Honda ECU towards the center of the vehicle to swing down and out properly. Begin with the purple wire on the Autometer air fuel gauge, this is the signal wire. This is the H02S wire, which represents the signal wire for your primary or upstream 02 sensor. Ground the black wire of the Autometer air fuel gauge to properly provide the low signal reference for your air fuel gauge.

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Thursday, January 13, Sign in. It might seem like quite a task at first, but installing and mounting an air fuel gauge in your vehicle is something you can do yourself in a short amount of time. An air fuel gauge will allow you to monitor the changes in oxygen content in the air your vehicle is breathing so that you can make adjustments to avoid damage to your vehicle or to prevent poor emissions. Move your shifter into the "Park" position.

Open the hood of the vehicle and unplug the negative battery cable using a wrench to loosen the bolt on the negative battery terminal. Look for a location that you want the air fuel gauge to go to. The air fuel gauge should come with a mounting kit that will allow you to put the gauge on top of the dash. Put the mounting kit on the specific place you want it and drill the screws that came with the mounting kit into the dash.

Press the gauge into the mounting kit. If you would like to put the gauge into the dash, cut a hole in the dash the same size as your air fuel gauge using a rotary tool. Place the mounting frame inside the hole and use a flat-head screwdriver to secure the screws to the dash of your vehicle. Insert the wires through the hole in the dash and route them into the engine bay. Press the gauge into the mount.

Route the wires through the firewall hole in the dash. If there is no hole in the firewall, make a small hole in the firewall of the vehicle so that you can route the wires of the gauge into the engine bay. Disconnect negative - battery cable. Using ga. NOTE: If you are hooking the signal wire at the oxygen sensor, connect to the vehicle wire harness, not the wires from the sensor.

The unheated sensor relies on exhaust gases for heat. The heated sensor has an internal heating element, which quickly reaches and maintains operating temperature. The unheated sensor has 1 or possibly 2 wires figure 3. The 1-wire sensor has only the signal wire, which goes to the S terminal on the gauge. The 2-wire sensor has an additional wire for the signal-ground.

The signal-ground wire connects along with the gauge - wire to the engine ground. The heated sensor generally has 3 or 4 wires figure 4.

On a 3-wire sensor there are generally 2 wires the same color for the heater. Connect one wire to ground and the other to a switched 12V source.