Tuning

Getting Started

Things you need

1. KWP2000+ OBD cable
2. KWP2000+ flashing software
3. TunerPro
4. XDF file for the revision of ECU you are using. If you wish to use a different version software than your car came with, read this carefully.
   • XDF for M-box.
5. ECUFix (optional, some kwp flashing software will do checksumming for you)

Fueling

• KRKTE - primary fueling
• KVB - fuel consumption (MPG in cluster)
• MLHFM - compensating for MAF housing diameter
• KFLDBTS - requested lambda for component protection when calculated EGT is above TABGBTS (may require a lower TABGBTS if your MAF is not 100% compensated for in MLHFM)
• LAMFA - requested lambda when calculated EGT is below TABGBTS

Boost

• KFMIRL - specified load
• FLKDHBN - maximum requested pressure ratio
• LDRXN - maximum specified load
• KFTARX - IAT correction for maximum specified load

Timing

• KFZW/KFZW2 - primary timing maps. ME7.1 has a two point variable cam timing system; there is a table for each cam timing state.

Other niceties

Speed limiter

• VAVMX/VMAX - Speed limiter

Rev limiter

• NMAX - RPM limit
• NLLM - idle RPM

Left foot braking

Set either of these to maximum to prevent throttle cut when left foot braking:

• NWPMBBR - Minimum RPM for acc pedal value lockout on brake operation
• VWPMBBR - Minimum speed for acc pedal value lockout on brake operation

Emissions

• CDKAT - Cat diagnosis in OBDII-Mode. Set to zero to disable rear cat DTC