MAP Correction

This table controls additional fuel against Manifold Pressure. 

When the Tuning Method is Volumetric Efficiency, the ECU is already compensating for Manifold Pressure and therefore this table is treated as an additional correction. Before tuning commences this table should be set to 0%.

It is common to see values in this table when using TPS as the fuel load source once the engine starts to lose efficiency with additional manifold pressure or pumping losses.

• Related Articles

• MAP Prediction / Fuel Film Model

  The MAP Prediction / Fuel Film Model allows the ECU to calculate the dynamic fuel delivery requirements of your engine during transient events such as rapid throttle movements and quick changes in load. This is actually two functions rolled into one ...

• Barometric Correction

  The Fuel Barometric Pressure Correction Table is used to correct engine fueling based upon atmospheric barometric pressure. The number in each cell of the above table represents a percentage change in fuel output for a given represented barometric ...

• Tuning

  The Transient Throttle tables should be set up after the fuel and maps are correctly tuned for steady load running. Attempting to smooth out engine transients before the fuel maps have been optimised for steady state running may become confusing. ...

• Fuel Tuning

  The Fuel Tuning node configures the main Fuel Tuning related information for the engine. Fuel Tuning Method Sets the method for fueling calculation. Most installations will use Volumetric Efficiency. See also Fuel Base. Auto V.E Air Temp Compensation ...

• Fuel Composition Correction

  The Fuel Composition Correction table is used to add or remove fuel where required. The amount of correction applied by this table scales with the Fuel Composition Scalar table. Eg, if the Composition Scalar table output is 50%, then 50% of the ...