A wide band is a “MANDATORY” for all turbo cars because nothing melts a piston faster than an incorrect setting when boost is increased. Low fuel is a catastrophic situation that leads to extensive damage to your engine and we all know the costs associated with building a new engine! What does broadband do? A wideband UEGO (Universal Exhaust Gas Oxygen) sensor controller accurately monitors air/fuel ratios (AFR) during the tuning process to prevent fuel lean, which could lead to engine damage.
We put together the following article to show you the correct way to install broadband, the installation is quite easy and shouldn’t take more than a couple of hours, remember to decide in advance the route you plan to use for the cabling to ensure a clean installation.
The first thing to do before installing the UEGO is to change the indicator configuration (faceplate and bezel)
Mount meter anywhere within 2″ hole (pillar or custom mounting location)
There are 2 wiring harnesses with the kit. The short one is used for indicator functions and the longer one connects to the UEGO sensor.
Hook the 2 harnesses to the back of the meter. (6 pin and 4 pin)
Pull the longest harness through the firewall.
Use a C-bracket to tighten the gauge at the back.
Disconnect the negative (-) battery cable.
Remove the downpipe and weld the M18x1.5 connector at least 36 inches from the exhaust side of the turbo and at a 10 degree angle (minimum).
Screw the UEGO sensor into the downspout plug.
Connect the end of the UEGO sensor to the end of the meter’s 6-wire harness.
Now it’s time to wire the 4-pin harness.
-RED (Power) Connect to a 10v-18v power supply.
-BLACK (ground) Connect to a clean ground point.
-WHITE (Analog Output) Connects to any auxiliary unit with 0-5v input.
-BLUE (Serial Output) Connects to an RS-232 communication port. (This output is optional)
Reconnect the negative (-) battery cable.
Start the car and let the engine warm up for 20+ seconds, now you are ready to start tuning!
