MAF CAL Advance is a development of the MAF CAL MAF calibration tool with more features.
RELEASE DATE Q2 2026
Features – MAF CAL Advance
MAF CAL Advance has all the features of MAF CAL, plus…
–Load compensated MAF calibration using MAP sensor
-Dynamic/automatic/auto-tune calibration using wideband lambda sensor signal (requires external wideband lambda sensor with analog output).
NOTE: These advanced functions can only be used/will only work when engine ECU is working in open loop fuelling.
In Detail
Enrichment Mode
User can choose if they want a different MAF calibration according to load. On or Off.
With function activated user sets the MAP signal when the load compensation should start and peak. eg start at 0 kPa relative pressure and give maximum enrichment from 50 kPa+. User chooses two settings for each MAF voltage as per MAF CAL. One is standard calibration compensation the other the maximum compensation. MAF CAL Advance interpolates the compensation percentage between 0 kPa and 50 kPa (in this example). From 50 kPa and up max compensation value is used.
Auto Tune
Using an analog signal from a wideband lambda sensor, MAF CAL Advance can automatically calibrate the MAF sensor to achieve the user desired lambda target as selected in the MAF CAL advance app.
Instead of setting the desired compensation in in the enrichment mode, in this case, the user selects their desired lambda target for normal and load conditions. MAF CAL advance will automatically tune the MAF adjustment percentage to achieve the desired lambda ratio. User enters the auto-tune percentage values into the settings as normal to store the values.
Example. Lambda 1 up to 0 kPa relative. Lambda 0.81 from 50 kPa relative and above. MAF CAL advance will interpolate the target lambda between 1 and 0.81 when engine load is between 0 and 50 kPa.
Additional Features – Auto Tune Function
Tolerance
If Lambda is within 0.2 of target MAF CAL advance will not make any adjustment.
Max auto adjustment for normal load is +/- 2%.
Max auto adjustment for load setting (above 0 kPa in this example) is +/- 10%.
Timing (Cold Start)
Auto adjustment will only happen after MAF CAL Advance unit has been powered for 3 minutes. Auto-tune function can be activated before this/overridden, by switching Closed Loop to off and back to on manually using the MAF CAL Advance app.
We do not want to calibrate MAF when engine is not at normal operating temperature.
Memory
If engine is switched off before auto tune values have been transferred to main settings, auto tune adjustments will be lost.
Updates
App screenshots and general information will be coming closer to the release date. Subscribe to the newsletter to get updates in your inbox.
