MAF Manager Rivazza – Automatic or Manual Fuel Tuning

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MAF Manager Rivazza. Alter engine fueling by manipulating MAF sensor signal.

Tune engine fuelling according to load and RPM manually.

Or

Automatically tune your engine fuelling by setting your target AFRs and let the Rivazza automatically adjust the MAF sensor signal to achieve your desired AFRs

Features

-9 cell tuning table. 3 x load (0-5 volt sensor input) 3 x rpm

-Manually tune/scale MAF signal or

-Auto tune function. When used with a wideband lambda sensor signal user sets desired AFR in each cell, MAF Manager Rivazza will automatically adjust the MAF sensor signal to achieve the desired AFR.

-Idle stabilization. User can choose a fixed MAF voltage output when engine load below user setting.

Inputs

1x 0-5 volt signal (from MAF sensor) – REQUIRED

1x 0-5 volt load sensor signal (for load eg MAP, MAF or TPS) – REQUIRED

1x 0-5 volt signal from Wideband Lambda Sensor – OPTIONAL

1x 0/5 volt timing signal. 1,2,3 or 4 spark signals per revolution – REQUIRED

Output

1x 0-5 volt sensor output (MAF signal to engine ECU) – REQUIRED

Suitable Uses

Increase engine power by adjusting engine fuelling from stock settings eg stock settings are excessively rich and you want to lean out the fuel

Tune engine fuelling to optimise bolt on engine upgrades eg intakes, camshafts

Mild engine swaps eg SR20DE swapped with SR20VE. Generally when the engine has been swapped with one of a similar capacity and are from the same engine family.


Initial setup

Check wiring. 

Open SET menu and check that the unit is receiving data from the sensors LOAD, MAF and RPM

MAP menu. 

Set your RPM and LOAD split points.

Set your “Fixed Multipliers”. These should be a ball park figure. eg if you have 20% bigger injectors, fixed multiplier initial value should be 0.8

Driving

Take it slowly to start, check your AFRs. As you drive. When back in the pits, check your fixed multiplier and adjust as required.

If you are using the auto tune function

Set your AFR targets

Take it slowly to start. When back in the pits, check your dynamic multipliers. Are they within 10% of the fixed multipliers? If not adjust your fixed multipliers. Repeat until Fixed Multipliers allow full range of adjustment in the autotune function

 

For full information, download the MAF Manager Rivazza User Manual

Email us with your questions.

 

 


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Manual

Click the link at the bottom to download a copy to your computer.

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