The wideband will not read properly for the first 20-30 seconds, since we don't start warming up the sensor until the engine is running. This extends sensor life, and reduces the chances of water condensation killing the sensor.
In certain circumstances, when someone wants the wideband to do a "pre" warmup, so it reads immediately on startup, there a procedure to make this happen. This feature was added after ECU serial #220. In general, I don't recommend it for most people, since you could kill the O2 sensor.
Turn the key on, hold the throttle over 25% for 5 seconds, the SES light will start blinking indicating sensor warmup. Once the SES goes solid, sensor warmup is complete, and you can start the car.
Usually, trying to get a wideband reading in the first 20 seconds of running can be pointless, but we added this for experimentation sake.
In certain circumstances, when someone wants the wideband to do a "pre" warmup, so it reads immediately on startup, there a procedure to make this happen. This feature was added after ECU serial #220. In general, I don't recommend it for most people, since you could kill the O2 sensor.
Turn the key on, hold the throttle over 25% for 5 seconds, the SES light will start blinking indicating sensor warmup. Once the SES goes solid, sensor warmup is complete, and you can start the car.
Usually, trying to get a wideband reading in the first 20 seconds of running can be pointless, but we added this for experimentation sake.