Available Tables/Maps for Tuning

Let us analyze MG Flasher’s v7.3 map pack and dive deeper into the available tables and codewords. You can acquire map packs as A2Ls or XDFs from our GitHub Repo, as described here: Custom Tuners - Map Pack Guide for Custom Code.

Map Pack for Custom Code v7.3 showing Custom Code folders and generic characteristic (OEM) maps

When we focus on just the Flex Fuel related maps from Custom Code, we see many categories appear:

Flex Fuel Core maps, Codewords, and slots 0 - 4
Custom Code v7.3 Map Pack

Basic Settings:

Delay to display flex fuel ethanol content on the dash
FlexFuelEthanolDisplayActivationDelay___MGF_CC_PF

Flex fuel warm up enrichment
FlexFuel_StartupEnrichment___MGF_CC

Fallback [KL_RF_MAX] when flex fuel ethanol sensor fails
KL_RF_MAX_FlexFuelSensorFailure___MGF_CC_PF

Fallback [KL_RF_MAX_UESP] when flex fuel ethanol sensor fails
KL_RF_MAX_UESP_FlexFuelSensorFailure___MGF_CC_PF

Codewords

Here are some codewords that are common for all map slots:

Description	Name

Description	Name
Set 1 (true) to use each Flex Fuel map slot and 0 (false) to use only Slot 0	CW_UseMultipleFlexFuelSlots___MGF_CC
Set 1 (true) to use Pump Fuel map slots for lower bounds when Blend Factor is greater than 100% and 0 (false) to use Flex Fuel #1 map slots	CW_UsePumpFuelMapWhenBlendFactorIsGreaterThan1___MGF_CC
Set 1 (true) to enable function and 0 (false) to disable function	CW_FlexFuel___MGF_CC
Set 1 (true) to enable function and 0 (false) to disable function	CW_FlexFuelBlending___MGF_CC
Set 1 (true) if flex fuel sensor is installed on PT-CAN2 and 0 (false) if not installed	CW_SensorEthanol___MGF_CC

Slot 0

Slot 0 can be used for all slots when CW_UseMultipleFlexFuelSlots___MGF_CC is disabled. Within each slot folder, we have 5 sub folders to further organize the maps, Blenders, Codewords (per slot), FF1, FF2, Sensorless Values. Map organization is shown below and describe in the Seven Tuning Categories sub section (below).

Slot 0 FF1 Map Organization
in Custom Code v7.3 Map Pack

Slot 1-4

Map layout is the same as slot 0, but only used when CW_UseMultipleFlexFuelSlots___MGF_CC is enabled.

Seven Tuning Categories

Tables are grouped together into Seven tuning categories:

Boost
- Maximum target boost pressure due to boost pressure sensor diagnosis (BMWtchsp_p_ReqMax_C)
Fuel Correction
- Kennfeld Beginnwinkel ES1 Warm (KF_PHA_H_B1_W)
- KF_PHA_H_E1
- Map pre-control correction bank 1 (KF_FRKKORRF_1)
Fuel Targets
- Base lambda in the homogeneous bank 1 (KF_LABAS_1)
Ignition
- Basic firing angle path 1 (KF_ZW_PF1)
- Basic firing angle path 2 (KF_ZW_PF2)
- Basic ignition angle overflush path 1 (KF_ZW_UESP_PF1)
- Basic ignition angle over-scavenging path 2 (KF_ZW_UESP_PF2)
- Basic ignition angle path 1 safe (KF_ZW_S_PF1)
- Basic ignition angle path 2 safe (KF_ZW_S_PF2)
- Map for ignition angle vanos in stop F_basis=1 path 1 (KF_ZW_VP_PF1)
- Map for ignition angle vanos in stop F_basis=1 path 2 (KF_ZW_VP_PF2)
Knock
- Knock detection factor map cylinder counter 0 (IKCtl_FacKnockDetThd0_GM)
- Knock detection factor map cylinder counter 1 (IKCtl_FacKnockDetThd1_GM)
- Knock detection factor map cylinder counter 2 (IKCtl_FacKnockDetThd2_GM)
- Knock detection factor map cylinder counter 3 (IKCtl_FacKnockDetThd3_GM)
- Knock detection factor map cylinder counter 4 (IKCtl_FacKnockDetThd4_GM)
- Knock detection factor map cylinder counter 5 (IKCtl_FacKnockDetThd5_GM)
Load Control
- Characteristic maximum permissible filling over speed (KL_RF_MAX)
- Characteristic of the maximum permissible filling over the speed when flushing (KL_RF_MAX_UESP)
Wastegate Control
- Correction of pressure difference f. P-part of the performance-based boost pressure controller (X-Axis does not switch, BMWtchctr_p_DifCrtnPp_M)
- Wastegate Position - for pilot control (BMWtchctr_pct_WgBasc_M)
- D part of the performance-based boost pressure controller (X-Axis and Y-Axis do not switch, BMWtchctr_pwr_Dp_M)
- Compressor map with required compressor / turbine performance (X-Axis does not switch, BMWtchctr_pwr_Pctl_M)

Blenders

Each of the 7 tuning categories gets their own blending factor maps, for each map slot. Details on these maps are described here: Understanding Map Blending: How Flex Fuel Maps Work.

Map name examples: FlexFuelBlendFactor___FuelCorrection_Slot_0___MGF_CC, FlexFuelBlendFactor___FuelTargets_Slot_1___MGF_CC, FlexFuelBlendFactor___FuelTargets_Slot_2___MGF_CC, etc.

Codewords (per slot)

Each slot can have flex fuel blending enabled individually using codewords like CW_FlexFuelBlending_Slot0___MGF_CC.

FF1 and FF2

These two folders contain the same layout of 7 tuning category maps, but with their own respective slot and fuel type.

Flex Fuel 2 (FF2) maps require valid calibration data, even if you do not use it, regardless if you keep blending factors at 100% or lower. This can be easily avoided by generating a stock map binary files from the app with Custom Code v7.3.