The Lambda/AFR Monitor
The AFX2 has all of the features of the AFX (i.e. AIR CAL feature and 0 to 5V output) with the following new features:
The module can display either Lambda or AFR (both for gasoline and methanol).
New wider range for the AFX2:
• 0.411 to 1.373 Lambda
• 6 to 20 AFR (gasoline)
• 2.66 to 8.88 AFR (methanol)
Original range on the AFX:
• 0.618 to 1.098 Lambda
• 9 to 16 AFR (gasoline)
• 4 to 7.1 AFR (methanol)
* Both ranges are selectable via an on-board jumper
Supports Bosch LSU4.9 and LSU4.2 sensors and NGK Spark Plugs (NTK) non-cofired sensors.
The AFX2 features faster display and analog output updating.
We wrote the original AFX User's Manual. The AFX2 manual is based on the AFX manual with a few tidbits of wisdom inspired by hearing from users over the last 10 years.
Unlike 10 years ago, there is a wealth of information available today explaining how to calibrate engines. The books and CDs written by Greg Banish (https://calibratedsuccess.com/) are excellent examples of this. Attending one of Greg's seminars is a rare opportunity to be trained by an engineer with extensive automotive OEM and aftermarket calibration experience.
The AFX2 Kit is NOT Supplied with a Lambda Sensor
Note: The thread on all wide-band lambda sensors is 18mm x 1.5mm. Mounting bosses are widely available.