8.
The status of the A/F channel will be displayed at the bottom of the dialog box. Before performing a
calibration, make sure the sensor is not still warming up and that there are no errors. Do not use the Heater
Calibration, Restart or Zero Calibration buttons. If you have installed a new sensor in this channel perform a
free air calibration. When you have finished click on the OK button to exit.
Free Air Calibration (using a calibrate button):
It is recommended to periodically perform a free air calibration to correct for sensor wear caused by leaded fuels and
aging. Before starting a free air calibration, the sensor must be removed from the exhaust and exposed to open air.
A free air calibration can be initiated by following the instructions below.
CAUTION:
Be careful when handling sensors during/after calibration as they will be
HOT.
Ensure sensors are
clear from any items as sensors may burn anything that comes in contact with them.
NOTE:
If the CALIBRATE button is not readily accessible, you can also perform a free air calibration using the
DataLink software.
1)
Remove each sensor from the exhaust pipes and leave exposed to open air.
2)
Turn on the controller and wait for the status LED to glow solid red.
3)
Press AND
4)
After at least 3 seconds,
release
the button and within the next 5 seconds,
press
hold
the CALIBRATE button on the controller for at least 3 seconds. The status LED will
begin to flash. This confirms the unit is ready to begin the calibration procedure.
AND
5)
Upon successful completion of the calibration process, the status LED will glow solid red.
release
the
CALIBRATE button once again, to confirm that you want to perform a free air calibration. The status
LED will flash rapidly while performing the calibration (only happens for a few seconds).
6)
Calibration is finished.
7)
Shut off all power, let sensors cool down before handling.
8)
Re-install in exhaust pipes.
Troubleshooting
There are two method used to indicate that there is an error on one or more channels.
1.
The channel will output a negative value to indicate an error. If the recorded data shows a
negative value, the data is invalid.
2.
The LED on top of the controller does not go solid after a few minutes and is flashing quickly,
about 5 flashes per second. This indicates that an error has occurred on one or more channels.
PROBLEM
RECOMMENED SOLUTION
I get a negative reading on one or
more channels.
A negative reading indicates an error has occurred. Look at the error code
chart below to determine the exact cause of the error.
The LED on top of the controller
never stops flashing.
A continuously fast flashing status LED indicates that an error has occurred
on one ore more channels. Perform the calibration procedure outlined
above on each channel. The status box will describe the cause of the error.
I am using the sensors with methanol
and the reading are very lean.
The factory default configuration is set to output air fuel ratio units for
gasoline. Follow the steps outlined in the ‘Software Setup and Module
Configuration’ section to set the sensor type to ‘A/F Units, Methanol’
IMPORTANT!!
You must remove the sensor from the exhaust and expose the sensor to open air before performing a free
air calibration. After removing the sensor from the exhaust, wave the sensor back and forth a few times to
be sure all of the exhaust gases are purged from the sensor.
